fix(pt): resolve Philips PET private SUV bulkdata before scaling (#6096)
* fix(pt): resolve Philips PET private SUV bulkdata before scaling
When a DICOMweb server delivers the Philips PET private tags SUVScaleFactor
(7053,1000) / ActivityConcentrationScaleFactor (7053,1009) as bulkdata, dcmjs
naturalization leaves them as { BulkDataURI } objects. These were fed verbatim
to calculate-suv, which treats the object as a valid value and silently
corrupts the SUV scaling factors.
Resolve these scalar private tags to numbers during ingestion - in both the
lazy (async) and non-lazy (sync) DICOMweb metadata paths, before INSTANCES_ADDED
fires - by decoding the bulkdata (VR-aware: DS/IS text or little-endian FL/FD).
Harden getPTImageIdInstanceMetadata to coerce values to finite numbers (reusing
@ohif/core utils.toNumber) and reject unresolved bulkdata objects so they can
never reach calculate-suv. Share the bulkdata-attach helper between both
metadata paths. Adds unit tests for the bulkdata decoder/resolver and for
getPTImageIdInstanceMetadata.
* refactor(bulkdata): move PET bulkdata resolution to a generic core tag registry
Generalize resolvePETPrivateScalarBulkData into a datasource-agnostic
utils.resolveBulkDataTags in @ohif/core, backed by a static tag registry
seeded with the Philips PET SUV/activity-concentration scalar tags and
extensible via registerResolvedBulkDataTags.
* fix(bulkdata): strip NUL padding and refresh qido auth before resolution
Address review feedback:
- decodeText now strips NUL (0x00) padding, which String.trim() leaves
intact, so NUL-padded DS/IS values no longer decode as NaN. Adds a
regression test.
- refresh qidoDicomWebClient.headers before resolveBulkDataTags in both
series-metadata paths; retrieveBulkData is bound to qidoDicomWebClient,
matching every other qido op in this file.
* fix(dicomweb): await deferred metadata storage
* fix(dicomweb): support single-part bulkdata responses
This commit is contained in:
Alireza
GitHub
parent
3c0e245398
commit
70421225d7
@ -25,6 +25,7 @@ import {
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} from '../utils/dicomWriter';
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import { getGetThumbnailSrc, ThumbnailContext } from './retrieveThumbnail';
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import { getRenderedURL } from './retrieveRendered';
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import retrieveBulkData from './retrieveBulkData';
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const { DicomMetaDictionary, DicomDict } = dcmjs.data;
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@ -147,6 +148,54 @@ function createDicomWebApi(dicomWebConfig: DicomWebConfig, servicesManager) {
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// this is part of hte base standard.
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dicomWebConfig.bulkDataURI ||= { enabled: true };
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/**
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* Adds the retrieve bulkdata function to naturalized DICOM data.
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* This is done recursively, for sub-sequences. Shared by both the lazy
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* (async) and non-lazy (sync) series-metadata retrieval paths.
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*/
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const addRetrieveBulkDataNaturalized = (naturalized, instance = naturalized) => {
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if (!naturalized) {
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return naturalized;
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}
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for (const key of Object.keys(naturalized)) {
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const value = naturalized[key];
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if (Array.isArray(value) && typeof value[0] === 'object') {
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// Fix recursive values
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const validValues = value.filter(Boolean);
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validValues.forEach(child => addRetrieveBulkDataNaturalized(child, instance));
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continue;
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}
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// The value.Value will be set with the bulkdata read value
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// in which case it isn't necessary to re-read this.
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if (value && value.BulkDataURI && !value.Value) {
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// handle the scenarios where bulkDataURI is relative path
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fixBulkDataURI(value, instance, dicomWebConfig);
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// Provide a method to fetch bulkdata
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value.retrieveBulkData = retrieveBulkData.bind(qidoDicomWebClient, value);
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}
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}
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return naturalized;
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};
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/**
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* naturalizes the dataset, and adds a retrieve bulkdata method
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* to any values containing BulkDataURI.
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* @param {*} instance
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* @returns naturalized dataset, with retrieveBulkData methods
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*/
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const addRetrieveBulkData = instance => {
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const naturalized = naturalizeDataset(instance);
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// if we know the server doesn't use bulkDataURI, then don't
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if (!dicomWebConfig.bulkDataURI?.enabled) {
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return naturalized;
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}
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return addRetrieveBulkDataNaturalized(naturalized);
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};
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const implementation = {
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initialize: ({ params, query }) => {
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if (dicomWebConfig.onConfiguration && typeof dicomWebConfig.onConfiguration === 'function') {
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@ -501,8 +550,16 @@ function createDicomWebApi(dicomWebConfig: DicomWebConfig, servicesManager) {
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dicomWebConfig
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);
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// first naturalize the data
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const naturalizedInstancesMetadata = data.map(naturalizeDataset);
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// first naturalize the data, attaching bulkdata retrieve methods so that
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// bulkdata-valued tags can be resolved (matching the lazy-load path).
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const naturalizedInstancesMetadata = data.map(addRetrieveBulkData);
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// Resolve the registered bulkdata tags (e.g. the Philips SUV Scale
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// Factor) delivered as bulkdata into plain numbers BEFORE
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// INSTANCES_ADDED fires. retrieveBulkData is bound to qidoDicomWebClient,
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// so refresh its auth headers first (matching every other qido op here).
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qidoDicomWebClient.headers = getAuthorizationHeader();
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await utils.resolveBulkDataTags(naturalizedInstancesMetadata);
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const seriesSummaryMetadata = {};
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const instancesPerSeries = {};
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@ -576,57 +633,19 @@ function createDicomWebApi(dicomWebConfig: DicomWebConfig, servicesManager) {
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dicomWebConfig
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);
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/**
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* Adds the retrieve bulkdata function to naturalized DICOM data.
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* This is done recursively, for sub-sequences.
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*/
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const addRetrieveBulkDataNaturalized = (naturalized, instance = naturalized) => {
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if (!naturalized) {
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return naturalized;
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}
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for (const key of Object.keys(naturalized)) {
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const value = naturalized[key];
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if (Array.isArray(value) && typeof value[0] === 'object') {
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// Fix recursive values
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const validValues = value.filter(Boolean);
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validValues.forEach(child => addRetrieveBulkDataNaturalized(child, instance));
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continue;
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}
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// The value.Value will be set with the bulkdata read value
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// in which case it isn't necessary to re-read this.
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if (value && value.BulkDataURI && !value.Value) {
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// handle the scenarios where bulkDataURI is relative path
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fixBulkDataURI(value, instance, dicomWebConfig);
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// Provide a method to fetch bulkdata
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value.retrieveBulkData = retrieveBulkData.bind(qidoDicomWebClient, value);
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}
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}
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return naturalized;
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};
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/**
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* naturalizes the dataset, and adds a retrieve bulkdata method
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* to any values containing BulkDataURI.
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* @param {*} instance
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* @returns naturalized dataset, with retrieveBulkData methods
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*/
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const addRetrieveBulkData = instance => {
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const naturalized = naturalizeDataset(instance);
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// if we know the server doesn't use bulkDataURI, then don't
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if (!dicomWebConfig.bulkDataURI?.enabled) {
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return naturalized;
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}
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return addRetrieveBulkDataNaturalized(naturalized);
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};
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// Async load series, store as retrieved
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function storeInstances(instances) {
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async function storeInstances(instances) {
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const naturalizedInstances = instances.map(addRetrieveBulkData);
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// Resolve the registered bulkdata tags (e.g. the Philips SUV Scale
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// Factor) that the server delivered as bulkdata into plain numbers
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// BEFORE INSTANCES_ADDED fires, so SUV scaling and every other
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// subscriber read a fully-resolved value rather than an unresolved
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// { BulkDataURI }. retrieveBulkData is bound to qidoDicomWebClient, so
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// refresh its auth headers first (matching every other qido op here).
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qidoDicomWebClient.headers = getAuthorizationHeader();
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await utils.resolveBulkDataTags(naturalizedInstances);
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// Adding instanceMetadata to OHIF MetadataProvider
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naturalizedInstances.forEach(instance => {
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setNonEnumerableInstanceProperty(instance, 'wadoRoot', dicomWebConfig.wadoRoot);
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@ -678,20 +697,44 @@ function createDicomWebApi(dicomWebConfig: DicomWebConfig, servicesManager) {
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DicomMetadataStore.addSeriesMetadata(seriesSummaryMetadata, madeInClient);
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let completedSeriesCount = 0;
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const seriesDeliveredPromises = seriesPromises.map(promise => {
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if (!returnPromises) {
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promise?.start();
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}
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return promise.then(instances => {
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storeInstances(instances);
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});
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let deliveredPromise;
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return {
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metadata: promise.metadata,
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start: () => {
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if (!deliveredPromise) {
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deliveredPromise = promise.start().then(async instances => {
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await storeInstances(instances);
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completedSeriesCount++;
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if (returnPromises && completedSeriesCount === seriesPromises.length) {
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setSuccessFlag();
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}
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return instances;
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});
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}
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return deliveredPromise;
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},
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};
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});
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if (returnPromises) {
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Promise.all(seriesDeliveredPromises).then(() => setSuccessFlag());
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return seriesPromises;
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if (!seriesDeliveredPromises.length) {
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setSuccessFlag();
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}
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// The route starts only the series required by the hanging protocol,
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// then starts the remainder in the background. Return wrappers whose
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// start() resolves after async metadata post-processing has stored the
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// instances and fired INSTANCES_ADDED; resolving the raw retrieval here
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// races hanging-protocol application against display-set creation.
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return seriesDeliveredPromises;
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} else {
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await Promise.all(seriesDeliveredPromises);
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await Promise.all(seriesDeliveredPromises.map(promise => promise.start()));
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setSuccessFlag();
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}
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@ -761,34 +804,4 @@ function createDicomWebApi(dicomWebConfig: DicomWebConfig, servicesManager) {
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return IWebApiDataSource.create(implementation);
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}
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/**
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* A bindable function that retrieves the bulk data against this as the
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* dicomweb client, and on the given value element.
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*
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* @param value - a bind value that stores the retrieve value to short circuit the
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* next retrieve instance.
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* @param options - to allow specifying the content type.
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*/
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function retrieveBulkData(value, options = {}) {
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const { mediaType } = options;
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const useOptions = {
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// The bulkdata fetches work with either multipart or
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// singlepart, so set multipart to false to let the server
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// decide which type to respond with.
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multipart: false,
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BulkDataURI: value.BulkDataURI,
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mediaTypes: mediaType ? [{ mediaType }, { mediaType: 'application/octet-stream' }] : undefined,
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...options,
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};
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return this.retrieveBulkData(useOptions).then(val => {
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// There are DICOM PDF cases where the first ArrayBuffer in the array is
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// the bulk data and DICOM video cases where the second ArrayBuffer is
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// the bulk data. Here we play it safe and do a find.
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const ret =
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(val instanceof Array && val.find(arrayBuffer => arrayBuffer?.byteLength)) || undefined;
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value.Value = ret;
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return ret;
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});
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}
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export { createDicomWebApi };
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@ -0,0 +1,35 @@
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import retrieveBulkData from './retrieveBulkData';
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describe('retrieveBulkData', () => {
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it('returns and caches a single-part ArrayBuffer response', async () => {
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const buffer = new Uint8Array([1]).buffer;
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const client = {
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retrieveBulkData: jest.fn().mockResolvedValue(buffer),
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};
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const value: { BulkDataURI: string; Value?: ArrayBuffer } = {
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BulkDataURI: 'https://example.com/bulk/70531000',
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};
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await expect(retrieveBulkData.call(client, value)).resolves.toBe(buffer);
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expect(value.Value).toBe(buffer);
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expect(client.retrieveBulkData).toHaveBeenCalledWith(
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expect.objectContaining({
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multipart: false,
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BulkDataURI: value.BulkDataURI,
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})
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);
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});
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it('still selects the non-empty buffer from a multipart response', async () => {
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const buffer = new Uint8Array([2]).buffer;
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const client = {
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retrieveBulkData: jest.fn().mockResolvedValue([new ArrayBuffer(0), buffer]),
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};
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const value: { BulkDataURI: string; Value?: ArrayBuffer } = {
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BulkDataURI: 'https://example.com/bulk/70531009',
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};
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await expect(retrieveBulkData.call(client, value)).resolves.toBe(buffer);
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expect(value.Value).toBe(buffer);
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});
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});
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@ -0,0 +1,31 @@
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/**
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* A bindable function that retrieves bulkdata against `this` DICOMweb client
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* and caches the resolved buffer on the given value element.
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*
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* @param value - A bound value that stores the retrieved buffer.
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* @param options - Options such as the requested content type.
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*/
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export default function retrieveBulkData(value, options = {}) {
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const { mediaType } = options;
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const useOptions = {
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// The bulkdata fetches work with either multipart or singlepart, so set
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// multipart to false to let the server decide which type to respond with.
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multipart: false,
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BulkDataURI: value.BulkDataURI,
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mediaTypes: mediaType ? [{ mediaType }, { mediaType: 'application/octet-stream' }] : undefined,
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...options,
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};
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return this.retrieveBulkData(useOptions).then(val => {
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// Single-part clients return a bare ArrayBuffer. Multipart clients return
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// an array; DICOM PDF/video payloads may occupy different positions, so
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// select the first non-empty part in that response shape.
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const ret = Array.isArray(val)
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? val.find(arrayBuffer => arrayBuffer?.byteLength)
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: val?.byteLength
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? val
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: undefined;
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value.Value = ret;
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return ret;
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});
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}
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102
extensions/default/src/getPTImageIdInstanceMetadata.test.ts
Normal file
102
extensions/default/src/getPTImageIdInstanceMetadata.test.ts
Normal file
@ -0,0 +1,102 @@
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const mockGet = jest.fn();
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// Minimal @ohif/core mock: the real utils.toNumber (used by coerceNumber) and a
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// stubbed MetadataProvider.get.
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jest.mock('@ohif/core', () => {
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const toNumber = (val: unknown) =>
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Array.isArray(val)
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? val.map(v => (v !== undefined ? Number(v) : v))
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: val !== undefined
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? Number(val)
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: val;
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const core = {
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classes: { MetadataProvider: { get: (...args: unknown[]) => mockGet(...args) } },
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utils: { toNumber },
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};
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return { __esModule: true, default: core, utils: core.utils };
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});
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import getPTImageIdInstanceMetadata from './getPTImageIdInstanceMetadata';
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// A valid PT instance with the radiopharmaceutical sequence in dcmjs array form.
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const baseInstance = () => ({
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Modality: 'PT',
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Units: 'CNTS',
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CorrectedImage: ['DECY', 'ATTN'],
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SeriesDate: '20130606',
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SeriesTime: '120000',
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AcquisitionDate: '20130606',
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AcquisitionTime: '120000',
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DecayCorrection: 'START',
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PatientWeight: 70,
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RadiopharmaceuticalInformationSequence: [
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{
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RadionuclideHalfLife: 6586.2,
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RadionuclideTotalDose: 370000000,
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RadiopharmaceuticalStartTime: '110000',
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},
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],
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});
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afterEach(() => mockGet.mockReset());
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describe('getPTImageIdInstanceMetadata', () => {
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it('throws when no metadata is available', () => {
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mockGet.mockReturnValue(undefined);
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expect(() => getPTImageIdInstanceMetadata('img:1')).toThrow('dicom metadata are required');
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});
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it('throws when required metadata is missing', () => {
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const inst = baseInstance();
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delete inst.Units;
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mockGet.mockReturnValue(inst);
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expect(() => getPTImageIdInstanceMetadata('img:1')).toThrow('required metadata are missing');
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});
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it('reads RadionuclideHalfLife/TotalDose from the array-shaped sequence (firstSequenceItem)', () => {
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mockGet.mockReturnValue(baseInstance());
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const result = getPTImageIdInstanceMetadata('img:1');
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expect(result.RadionuclideHalfLife).toBe(6586.2);
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expect(result.RadionuclideTotalDose).toBe(370000000);
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});
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it('still reads the sequence when flattened to a single object', () => {
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const inst = baseInstance();
|
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// some servers/paths deliver a flattened (non-array) sequence
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inst.RadiopharmaceuticalInformationSequence =
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inst.RadiopharmaceuticalInformationSequence[0];
|
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mockGet.mockReturnValue(inst);
|
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expect(getPTImageIdInstanceMetadata('img:1').RadionuclideHalfLife).toBe(6586.2);
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});
|
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|
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it('populates PhilipsPETPrivateGroup when the private tags are numbers', () => {
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const inst = baseInstance();
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inst['70531000'] = 0.00038;
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inst['70531009'] = 1.881732;
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mockGet.mockReturnValue(inst);
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const result = getPTImageIdInstanceMetadata('img:1');
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expect(result.PhilipsPETPrivateGroup).toEqual({
|
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SUVScaleFactor: 0.00038,
|
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ActivityConcentrationScaleFactor: 1.881732,
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});
|
||||
});
|
||||
|
||||
it('drops an unresolved bulkdata { BulkDataURI } private tag (coerceNumber backstop)', () => {
|
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const inst = baseInstance();
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inst['70531000'] = { BulkDataURI: 'http://x/bulk/70531000' };
|
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inst['70531009'] = { BulkDataURI: 'http://x/bulk/70531009' };
|
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mockGet.mockReturnValue(inst);
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// Neither tag coerces to a number, so the group is not attached at all -
|
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// an object can never reach calculate-suv.
|
||||
expect(getPTImageIdInstanceMetadata('img:1').PhilipsPETPrivateGroup).toBeUndefined();
|
||||
});
|
||||
|
||||
it('coerces a numeric DS string private tag to a number', () => {
|
||||
const inst = baseInstance();
|
||||
inst['70531000'] = '0.00038';
|
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mockGet.mockReturnValue(inst);
|
||||
expect(getPTImageIdInstanceMetadata('img:1').PhilipsPETPrivateGroup.SUVScaleFactor).toBe(
|
||||
0.00038
|
||||
);
|
||||
});
|
||||
});
|
||||
@ -1,6 +1,6 @@
|
||||
import OHIF from '@ohif/core';
|
||||
import OHIF, { utils } from '@ohif/core';
|
||||
|
||||
import type { InstanceMetadata, PhilipsPETPrivateGroup } from '@cornerstonejs/calculate-suv/src/types';
|
||||
import type { InstanceMetadata, PhilipsPETPrivateGroup } from '@cornerstonejs/calculate-suv';
|
||||
|
||||
const metadataProvider = OHIF.classes.MetadataProvider;
|
||||
|
||||
@ -11,21 +11,25 @@ export default function getPTImageIdInstanceMetadata(imageId: string): InstanceM
|
||||
throw new Error('dicom metadata are required');
|
||||
}
|
||||
|
||||
const radiopharmaceuticalInfo = firstSequenceItem<Record<string, unknown>>(
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence
|
||||
);
|
||||
const radionuclideHalfLife = coerceNumber(radiopharmaceuticalInfo?.RadionuclideHalfLife);
|
||||
const radionuclideTotalDose = coerceNumber(radiopharmaceuticalInfo?.RadionuclideTotalDose);
|
||||
|
||||
if (
|
||||
dicomMetaData.SeriesDate === undefined ||
|
||||
dicomMetaData.SeriesTime === undefined ||
|
||||
dicomMetaData.CorrectedImage === undefined ||
|
||||
dicomMetaData.Units === undefined ||
|
||||
!dicomMetaData.RadiopharmaceuticalInformationSequence ||
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadionuclideHalfLife === undefined ||
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadionuclideTotalDose === undefined ||
|
||||
!radiopharmaceuticalInfo ||
|
||||
radionuclideHalfLife === undefined ||
|
||||
radionuclideTotalDose === undefined ||
|
||||
dicomMetaData.DecayCorrection === undefined ||
|
||||
dicomMetaData.AcquisitionDate === undefined ||
|
||||
dicomMetaData.AcquisitionTime === undefined ||
|
||||
(dicomMetaData.RadiopharmaceuticalInformationSequence.RadiopharmaceuticalStartDateTime ===
|
||||
undefined &&
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadiopharmaceuticalStartTime ===
|
||||
undefined)
|
||||
(radiopharmaceuticalInfo.RadiopharmaceuticalStartDateTime === undefined &&
|
||||
radiopharmaceuticalInfo.RadiopharmaceuticalStartTime === undefined)
|
||||
) {
|
||||
throw new Error('required metadata are missing');
|
||||
}
|
||||
@ -37,73 +41,84 @@ export default function getPTImageIdInstanceMetadata(imageId: string): InstanceM
|
||||
const instanceMetadata: InstanceMetadata = {
|
||||
CorrectedImage: dicomMetaData.CorrectedImage,
|
||||
Units: dicomMetaData.Units,
|
||||
RadionuclideHalfLife: dicomMetaData.RadiopharmaceuticalInformationSequence.RadionuclideHalfLife,
|
||||
RadionuclideTotalDose:
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadionuclideTotalDose,
|
||||
RadiopharmaceuticalStartDateTime:
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadiopharmaceuticalStartDateTime,
|
||||
RadiopharmaceuticalStartTime:
|
||||
dicomMetaData.RadiopharmaceuticalInformationSequence.RadiopharmaceuticalStartTime,
|
||||
RadionuclideHalfLife: radionuclideHalfLife,
|
||||
RadionuclideTotalDose: radionuclideTotalDose,
|
||||
RadiopharmaceuticalStartDateTime: radiopharmaceuticalInfo.RadiopharmaceuticalStartDateTime,
|
||||
RadiopharmaceuticalStartTime: radiopharmaceuticalInfo.RadiopharmaceuticalStartTime,
|
||||
DecayCorrection: dicomMetaData.DecayCorrection,
|
||||
PatientWeight: dicomMetaData.PatientWeight,
|
||||
PatientWeight: coerceNumber(dicomMetaData.PatientWeight),
|
||||
SeriesDate: dicomMetaData.SeriesDate,
|
||||
SeriesTime: dicomMetaData.SeriesTime,
|
||||
AcquisitionDate: dicomMetaData.AcquisitionDate,
|
||||
AcquisitionTime: dicomMetaData.AcquisitionTime,
|
||||
};
|
||||
|
||||
if (
|
||||
dicomMetaData['70531000'] ||
|
||||
dicomMetaData['70531000'] !== undefined ||
|
||||
dicomMetaData['70531009'] ||
|
||||
dicomMetaData['70531009'] !== undefined
|
||||
) {
|
||||
// Philips PET private group. Only populated with values that coerce to real
|
||||
// numbers; an unresolved bulkdata object yields undefined and is dropped so it
|
||||
// can never corrupt the SUV calculation. SUVScaleFactor is (7053,1000) and
|
||||
// ActivityConcentrationScaleFactor is (7053,1009). These are resolved from
|
||||
// bulkdata upstream during ingestion (utils.resolveBulkDataTags).
|
||||
const suvScaleFactor = coerceNumber(dicomMetaData['70531000']);
|
||||
const activityConcentrationScaleFactor = coerceNumber(dicomMetaData['70531009']);
|
||||
if (suvScaleFactor !== undefined || activityConcentrationScaleFactor !== undefined) {
|
||||
const philipsPETPrivateGroup: PhilipsPETPrivateGroup = {
|
||||
SUVScaleFactor: dicomMetaData['70531000'],
|
||||
ActivityConcentrationScaleFactor: dicomMetaData['70531009'],
|
||||
SUVScaleFactor: suvScaleFactor,
|
||||
ActivityConcentrationScaleFactor: activityConcentrationScaleFactor,
|
||||
};
|
||||
instanceMetadata.PhilipsPETPrivateGroup = philipsPETPrivateGroup;
|
||||
}
|
||||
|
||||
if (dicomMetaData['0009100d'] && dicomMetaData['0009100d'] !== undefined) {
|
||||
if (dicomMetaData['0009100d'] !== undefined) {
|
||||
instanceMetadata.GEPrivatePostInjectionDateTime = dicomMetaData['0009100d'];
|
||||
}
|
||||
|
||||
if (dicomMetaData.FrameReferenceTime && dicomMetaData.FrameReferenceTime !== undefined) {
|
||||
instanceMetadata.FrameReferenceTime = dicomMetaData.FrameReferenceTime;
|
||||
const frameReferenceTime = coerceNumber(dicomMetaData.FrameReferenceTime);
|
||||
if (frameReferenceTime !== undefined) {
|
||||
instanceMetadata.FrameReferenceTime = frameReferenceTime;
|
||||
}
|
||||
|
||||
if (dicomMetaData.ActualFrameDuration && dicomMetaData.ActualFrameDuration !== undefined) {
|
||||
instanceMetadata.ActualFrameDuration = dicomMetaData.ActualFrameDuration;
|
||||
const actualFrameDuration = coerceNumber(dicomMetaData.ActualFrameDuration);
|
||||
if (actualFrameDuration !== undefined) {
|
||||
instanceMetadata.ActualFrameDuration = actualFrameDuration;
|
||||
}
|
||||
|
||||
if (dicomMetaData.PatientSex && dicomMetaData.PatientSex !== undefined) {
|
||||
if (dicomMetaData.PatientSex !== undefined) {
|
||||
instanceMetadata.PatientSex = dicomMetaData.PatientSex;
|
||||
}
|
||||
|
||||
if (dicomMetaData.PatientSize && dicomMetaData.PatientSize !== undefined) {
|
||||
instanceMetadata.PatientSize = dicomMetaData.PatientSize;
|
||||
const patientSize = coerceNumber(dicomMetaData.PatientSize);
|
||||
if (patientSize !== undefined) {
|
||||
instanceMetadata.PatientSize = patientSize;
|
||||
}
|
||||
|
||||
return instanceMetadata;
|
||||
}
|
||||
|
||||
function convertInterfaceTimeToString(time): string {
|
||||
const hours = `${time.hours || '00'}`.padStart(2, '0');
|
||||
const minutes = `${time.minutes || '00'}`.padStart(2, '0');
|
||||
const seconds = `${time.seconds || '00'}`.padStart(2, '0');
|
||||
|
||||
const fractionalSeconds = `${time.fractionalSeconds || '000000'}`.padEnd(6, '0');
|
||||
|
||||
const timeString = `${hours}${minutes}${seconds}.${fractionalSeconds}`;
|
||||
return timeString;
|
||||
}
|
||||
|
||||
function convertInterfaceDateToString(date): string {
|
||||
const month = `${date.month}`.padStart(2, '0');
|
||||
const day = `${date.day}`.padStart(2, '0');
|
||||
const dateString = `${date.year}${month}${day}`;
|
||||
return dateString;
|
||||
}
|
||||
|
||||
export { getPTImageIdInstanceMetadata };
|
||||
|
||||
/**
|
||||
* Coerces a naturalized DICOM value into a finite number, or returns undefined.
|
||||
*
|
||||
* Delegates to OHIF's `utils.toNumber` and then requires a finite scalar, so an
|
||||
* object value - such as an unresolved bulkdata reference `{ BulkDataURI }` or
|
||||
* an array - becomes undefined. This is the final backstop ensuring such a value
|
||||
* can never reach calculate-suv (which treats it as truthy and silently corrupts
|
||||
* the SUV factors). Bulkdata is meant to be resolved upstream during ingestion
|
||||
* (see utils.resolveBulkDataTags); this guard catches anything that slips
|
||||
* through.
|
||||
*/
|
||||
function coerceNumber(value: unknown): number | undefined {
|
||||
const n = utils.toNumber(value);
|
||||
return typeof n === 'number' && Number.isFinite(n) ? n : undefined;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the first item of a DICOM sequence, tolerating either the dcmjs
|
||||
* naturalized array shape or an already-flattened single-object shape.
|
||||
*/
|
||||
function firstSequenceItem<T = Record<string, unknown>>(seq: unknown): T | undefined {
|
||||
if (seq == null || typeof seq !== 'object') {
|
||||
return undefined;
|
||||
}
|
||||
return (Array.isArray(seq) ? seq[0] : seq) as T;
|
||||
}
|
||||
|
||||
@ -50,6 +50,12 @@ import areAllImageOrientationsEqual from './areAllImageOrientationsEqual';
|
||||
import { structuredCloneWithFunctions } from './structuredCloneWithFunctions';
|
||||
import { buildButtonCommands } from './buildButtonCommands';
|
||||
import { thumbnailNoImageModalities } from './thumbnailNoImageModalities';
|
||||
import {
|
||||
resolveBulkDataTags,
|
||||
registerResolvedBulkDataTags,
|
||||
getResolvedBulkDataTags,
|
||||
decodeNumericBulkData,
|
||||
} from './resolveBulkDataTags';
|
||||
|
||||
import { downloadBlob, downloadUrl, downloadCsv, downloadDicom } from './downloadBlob';
|
||||
|
||||
@ -111,6 +117,10 @@ const utils = {
|
||||
downloadUrl,
|
||||
downloadCsv,
|
||||
downloadDicom,
|
||||
resolveBulkDataTags,
|
||||
registerResolvedBulkDataTags,
|
||||
getResolvedBulkDataTags,
|
||||
decodeNumericBulkData,
|
||||
};
|
||||
|
||||
export {
|
||||
@ -155,6 +165,10 @@ export {
|
||||
downloadUrl,
|
||||
downloadCsv,
|
||||
downloadDicom,
|
||||
resolveBulkDataTags,
|
||||
registerResolvedBulkDataTags,
|
||||
getResolvedBulkDataTags,
|
||||
decodeNumericBulkData,
|
||||
};
|
||||
|
||||
export default utils;
|
||||
|
||||
201
platform/core/src/utils/resolveBulkDataTags.test.ts
Normal file
201
platform/core/src/utils/resolveBulkDataTags.test.ts
Normal file
@ -0,0 +1,201 @@
|
||||
import { TextEncoder, TextDecoder } from 'util';
|
||||
import {
|
||||
decodeNumericBulkData,
|
||||
resolveBulkDataTags,
|
||||
registerResolvedBulkDataTags,
|
||||
getResolvedBulkDataTags,
|
||||
} from './resolveBulkDataTags';
|
||||
|
||||
// jsdom does not expose TextEncoder/TextDecoder; the Node util implementations
|
||||
// are spec-compatible and match what browsers provide at runtime.
|
||||
Object.assign(globalThis, { TextEncoder, TextDecoder });
|
||||
|
||||
const textBuffer = (s: string): ArrayBuffer => new TextEncoder().encode(s).buffer;
|
||||
const float32Buffer = (n: number): ArrayBuffer => new Float32Array([n]).buffer;
|
||||
const float64Buffer = (n: number): ArrayBuffer => new Float64Array([n]).buffer;
|
||||
|
||||
describe('decodeNumericBulkData', () => {
|
||||
it('decodes a space-padded DS string (Philips SUVScaleFactor)', () => {
|
||||
// The actual bytes returned by Orthanc for (7053,1000): "0.00038 "
|
||||
expect(decodeNumericBulkData(textBuffer('0.00038 '))).toBeCloseTo(0.00038, 8);
|
||||
});
|
||||
|
||||
it('decodes a plain DS string', () => {
|
||||
expect(decodeNumericBulkData(textBuffer('1.881732'))).toBeCloseTo(1.881732, 6);
|
||||
});
|
||||
|
||||
it('decodes a NUL-padded DS string', () => {
|
||||
// Some servers pad DS/IS values with NUL (0x00) rather than space; trim()
|
||||
// does not strip NUL, so this guards the explicit NUL handling in decodeText.
|
||||
expect(decodeNumericBulkData(textBuffer('0.00038\0'))).toBeCloseTo(0.00038, 8);
|
||||
});
|
||||
|
||||
it('decodes scientific notation', () => {
|
||||
expect(decodeNumericBulkData(textBuffer('3.8e-4'))).toBeCloseTo(0.00038, 8);
|
||||
});
|
||||
|
||||
it('takes the first value of a multi-valued DS string', () => {
|
||||
expect(decodeNumericBulkData(textBuffer('1.5\\2.5'))).toBe(1.5);
|
||||
});
|
||||
|
||||
it('decodes a 4-byte little-endian FL value', () => {
|
||||
expect(decodeNumericBulkData(float32Buffer(0.00038))).toBeCloseTo(0.00038, 7);
|
||||
});
|
||||
|
||||
it('decodes an 8-byte little-endian FD value', () => {
|
||||
expect(decodeNumericBulkData(float64Buffer(0.00038))).toBeCloseTo(0.00038, 12);
|
||||
});
|
||||
|
||||
it('accepts a typed-array view, not just an ArrayBuffer', () => {
|
||||
expect(decodeNumericBulkData(new Uint8Array(textBuffer('2.0')))).toBe(2);
|
||||
});
|
||||
|
||||
it('returns undefined for an empty buffer', () => {
|
||||
expect(decodeNumericBulkData(new ArrayBuffer(0))).toBeUndefined();
|
||||
});
|
||||
|
||||
it('returns undefined for non-numeric text', () => {
|
||||
expect(decodeNumericBulkData(textBuffer('not-a-number'))).toBeUndefined();
|
||||
});
|
||||
|
||||
it('returns undefined for null / undefined / non-buffer input', () => {
|
||||
expect(decodeNumericBulkData(null)).toBeUndefined();
|
||||
expect(decodeNumericBulkData(undefined)).toBeUndefined();
|
||||
expect(decodeNumericBulkData({ BulkDataURI: 'http://x' })).toBeUndefined();
|
||||
});
|
||||
});
|
||||
|
||||
describe('resolveBulkDataTags', () => {
|
||||
const SUV_TAG = '70531000';
|
||||
const AC_TAG = '70531009';
|
||||
|
||||
it('registers the Philips PET scalar tags by default', () => {
|
||||
expect(getResolvedBulkDataTags()).toEqual(expect.arrayContaining([SUV_TAG, AC_TAG]));
|
||||
});
|
||||
|
||||
it('resolves a Philips bulkdata tag to a number via retrieveBulkData', async () => {
|
||||
const instance: Record<string, unknown> = {
|
||||
Modality: 'PT',
|
||||
[SUV_TAG]: {
|
||||
BulkDataURI: 'http://x/bulk/70531000',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('0.00038 ')),
|
||||
},
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[SUV_TAG]).toBeCloseTo(0.00038, 8);
|
||||
});
|
||||
|
||||
it('resolves both Philips scalar tags', async () => {
|
||||
const instance: Record<string, unknown> = {
|
||||
Modality: 'PT',
|
||||
[SUV_TAG]: {
|
||||
BulkDataURI: 'http://x/1',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('0.00038')),
|
||||
},
|
||||
[AC_TAG]: {
|
||||
BulkDataURI: 'http://x/2',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('1.881732')),
|
||||
},
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[SUV_TAG]).toBeCloseTo(0.00038, 8);
|
||||
expect(instance[AC_TAG]).toBeCloseTo(1.881732, 6);
|
||||
});
|
||||
|
||||
it('resolves registered tags regardless of modality', async () => {
|
||||
const instance: Record<string, unknown> = {
|
||||
Modality: 'CT',
|
||||
[SUV_TAG]: {
|
||||
BulkDataURI: 'http://x',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('0.5')),
|
||||
},
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[SUV_TAG]).toBe(0.5);
|
||||
});
|
||||
|
||||
it('resolves additionally registered tags', async () => {
|
||||
const CUSTOM_TAG = '00091001';
|
||||
registerResolvedBulkDataTags(CUSTOM_TAG);
|
||||
expect(getResolvedBulkDataTags()).toContain(CUSTOM_TAG);
|
||||
|
||||
const instance: Record<string, unknown> = {
|
||||
[CUSTOM_TAG]: {
|
||||
BulkDataURI: 'http://x/custom',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('42.5')),
|
||||
},
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[CUSTOM_TAG]).toBe(42.5);
|
||||
});
|
||||
|
||||
it('registers arrays of tags and normalizes casing', async () => {
|
||||
registerResolvedBulkDataTags(['0019100a']);
|
||||
expect(getResolvedBulkDataTags()).toContain('0019100A');
|
||||
|
||||
// The naturalized dataset may key the tag in either casing.
|
||||
const instance: Record<string, unknown> = {
|
||||
'0019100a': {
|
||||
BulkDataURI: 'http://x',
|
||||
retrieveBulkData: jest.fn().mockResolvedValue(textBuffer('7')),
|
||||
},
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance['0019100a']).toBe(7);
|
||||
});
|
||||
|
||||
it('uses the cached value.Value without fetching again', async () => {
|
||||
const retrieveBulkData = jest.fn();
|
||||
const instance: Record<string, unknown> = {
|
||||
[SUV_TAG]: { BulkDataURI: 'http://x', Value: textBuffer('0.5'), retrieveBulkData },
|
||||
};
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[SUV_TAG]).toBe(0.5);
|
||||
expect(retrieveBulkData).not.toHaveBeenCalled();
|
||||
});
|
||||
|
||||
it('leaves an already-numeric value untouched', async () => {
|
||||
const instance: Record<string, unknown> = { [SUV_TAG]: 0.00038 };
|
||||
await resolveBulkDataTags([instance]);
|
||||
expect(instance[SUV_TAG]).toBe(0.00038);
|
||||
});
|
||||
|
||||
it('leaves the value untouched when bulkdata cannot be fetched (no retrieveBulkData)', async () => {
|
||||
const value = { BulkDataURI: 'http://x' };
|
||||
const instance: Record<string, unknown> = { [SUV_TAG]: value };
|
||||
|
||||
await resolveBulkDataTags([instance]);
|
||||
|
||||
expect(instance[SUV_TAG]).toBe(value);
|
||||
});
|
||||
|
||||
it('does not throw and leaves the value when retrieveBulkData rejects', async () => {
|
||||
const warn = jest.spyOn(console, 'warn').mockImplementation(() => undefined);
|
||||
const value = {
|
||||
BulkDataURI: 'http://x',
|
||||
retrieveBulkData: jest.fn().mockRejectedValue(new Error('request failed')),
|
||||
};
|
||||
const instance: Record<string, unknown> = { [SUV_TAG]: value };
|
||||
|
||||
await expect(resolveBulkDataTags([instance])).resolves.toBeUndefined();
|
||||
expect(instance[SUV_TAG]).toBe(value);
|
||||
warn.mockRestore();
|
||||
});
|
||||
|
||||
it('is a no-op for empty / non-array input', async () => {
|
||||
await expect(resolveBulkDataTags([])).resolves.toBeUndefined();
|
||||
await expect(resolveBulkDataTags(undefined as unknown as unknown[])).resolves.toBeUndefined();
|
||||
});
|
||||
});
|
||||
194
platform/core/src/utils/resolveBulkDataTags.ts
Normal file
194
platform/core/src/utils/resolveBulkDataTags.ts
Normal file
@ -0,0 +1,194 @@
|
||||
/**
|
||||
* A static registry of DICOM tags whose values must be resolved from bulkdata
|
||||
* into plain numbers during metadata ingestion, before INSTANCES_ADDED fires.
|
||||
*
|
||||
* Background: some servers return small scalar values - notably the Philips
|
||||
* SUV Scale Factor (7053,1000) and Activity Concentration Scale Factor
|
||||
* (7053,1009) - as bulkdata rather than inline. dcmjs `naturalizeDataset` then
|
||||
* leaves them as `{ BulkDataURI: '...' }` objects under their raw hex key.
|
||||
* Downstream consumers (e.g. SUV scaling via calculate-suv) expect numbers and
|
||||
* silently corrupt when handed an object, so data sources resolve the
|
||||
* registered tags eagerly so that every subscriber reads a fully-resolved
|
||||
* number.
|
||||
*
|
||||
* The registry is intentionally not tied to any data source: it is a static
|
||||
* list that any data source can consume via `resolveBulkDataTags`, and that
|
||||
* extensions can extend via `registerResolvedBulkDataTags`.
|
||||
*
|
||||
* Resolution reuses the `retrieveBulkData` method that data sources bind onto
|
||||
* each bulkdata value; when it is absent the value is left untouched and
|
||||
* consumers fall back gracefully.
|
||||
*/
|
||||
|
||||
// Tags that may arrive as bulkdata and must be resolved to numbers, keyed by
|
||||
// the naturalized (comma-less) hex tag. Seeded with the Philips PET Private
|
||||
// Group scalar tags; both are VR DS in the standard Philips definition, but
|
||||
// the VR is auto-detected (see decode below) because servers occasionally
|
||||
// encode them as FL/FD.
|
||||
const resolvedBulkDataTags = new Set<string>([
|
||||
'70531000', // Philips SUV Scale Factor
|
||||
'70531009', // Philips Activity Concentration Scale Factor
|
||||
]);
|
||||
|
||||
/**
|
||||
* Registers additional tags (naturalized comma-less hex form, e.g.
|
||||
* '70531000') to be resolved from bulkdata during metadata ingestion.
|
||||
*/
|
||||
export function registerResolvedBulkDataTags(tags: string | string[]): void {
|
||||
const list = Array.isArray(tags) ? tags : [tags];
|
||||
for (const tag of list) {
|
||||
if (typeof tag === 'string' && tag.length) {
|
||||
resolvedBulkDataTags.add(tag.toUpperCase());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the tags currently registered for eager bulkdata resolution.
|
||||
*/
|
||||
export function getResolvedBulkDataTags(): string[] {
|
||||
return [...resolvedBulkDataTags];
|
||||
}
|
||||
|
||||
function toUint8(raw: unknown): Uint8Array | undefined {
|
||||
// Check views first: ArrayBuffer.isView is realm-agnostic.
|
||||
if (ArrayBuffer.isView(raw)) {
|
||||
const view = raw as ArrayBufferView;
|
||||
return new Uint8Array(view.buffer, view.byteOffset, view.byteLength);
|
||||
}
|
||||
// `instanceof ArrayBuffer` is realm-specific, so fall back to a tag check so
|
||||
// that buffers created in another realm (workers, tests) are still handled.
|
||||
if (
|
||||
raw instanceof ArrayBuffer ||
|
||||
Object.prototype.toString.call(raw) === '[object ArrayBuffer]'
|
||||
) {
|
||||
return new Uint8Array(raw as ArrayBuffer);
|
||||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
// A DS/IS value is printable ASCII (digits, sign, decimal point, exponent,
|
||||
// backslash separator, spaces, null padding); raw FL/FD bytes generally are
|
||||
// not. This lets us auto-detect the encoding without trusting a VR field, which
|
||||
// dcmjs drops when a value is delivered as bulkdata.
|
||||
function isPrintableNumeric(bytes: Uint8Array): boolean {
|
||||
if (bytes.length === 0) {
|
||||
return false;
|
||||
}
|
||||
for (let i = 0; i < bytes.length; i++) {
|
||||
const b = bytes[i];
|
||||
const isDigit = b >= 0x30 && b <= 0x39; // 0-9
|
||||
const isAllowed =
|
||||
b === 0x2b || // +
|
||||
b === 0x2d || // -
|
||||
b === 0x2e || // .
|
||||
b === 0x45 || // E
|
||||
b === 0x65 || // e
|
||||
b === 0x5c || // backslash (multi-value separator)
|
||||
b === 0x20 || // space (padding)
|
||||
b === 0x00; // null (padding)
|
||||
if (!isDigit && !isAllowed) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function decodeText(bytes: Uint8Array): number | undefined {
|
||||
// `String.trim()` strips ASCII/Unicode whitespace but NOT NUL (0x00), which
|
||||
// `isPrintableNumeric` treats as valid padding, so strip NULs explicitly -
|
||||
// otherwise a NUL-padded value like "0.00038\0" survives as NaN.
|
||||
const text = new TextDecoder().decode(bytes).replace(/\0+/g, '').trim();
|
||||
// DS/IS may be multi-valued (backslash-delimited); take the first value.
|
||||
const first = text.split('\\')[0].trim();
|
||||
if (!first) {
|
||||
return undefined;
|
||||
}
|
||||
const n = Number(first);
|
||||
return Number.isFinite(n) ? n : undefined;
|
||||
}
|
||||
|
||||
function decodeBinaryFloat(bytes: Uint8Array): number | undefined {
|
||||
const dv = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);
|
||||
let n: number | undefined;
|
||||
if (bytes.byteLength === 4) {
|
||||
n = dv.getFloat32(0, /* littleEndian */ true);
|
||||
} else if (bytes.byteLength === 8) {
|
||||
n = dv.getFloat64(0, /* littleEndian */ true);
|
||||
}
|
||||
return n !== undefined && Number.isFinite(n) ? n : undefined;
|
||||
}
|
||||
|
||||
/**
|
||||
* Decodes a bulkdata buffer into a single number. The VR is not available on a
|
||||
* naturalized bulkdata value (dcmjs drops it), so the encoding is auto-detected:
|
||||
* printable-ASCII payloads are decoded as DS/IS text, otherwise the bytes are
|
||||
* read as little-endian IEEE-754 (FL = 4 bytes, FD = 8 bytes).
|
||||
*/
|
||||
export function decodeNumericBulkData(raw: unknown): number | undefined {
|
||||
const bytes = toUint8(raw);
|
||||
if (!bytes || bytes.byteLength === 0) {
|
||||
return undefined;
|
||||
}
|
||||
if (isPrintableNumeric(bytes)) {
|
||||
return decodeText(bytes);
|
||||
}
|
||||
return decodeBinaryFloat(bytes) ?? decodeText(bytes);
|
||||
}
|
||||
|
||||
async function resolveValueToNumber(value): Promise<number | undefined> {
|
||||
// retrieveBulkData caches the resolved buffer on value.Value, so prefer it.
|
||||
let buffer = value.Value;
|
||||
if (buffer == null && typeof value.retrieveBulkData === 'function') {
|
||||
buffer = await value.retrieveBulkData();
|
||||
}
|
||||
if (buffer == null) {
|
||||
return undefined;
|
||||
}
|
||||
return decodeNumericBulkData(buffer);
|
||||
}
|
||||
|
||||
/**
|
||||
* Resolves, in place, the registered bulkdata tags on a single naturalized
|
||||
* instance. No-op for values that are already numbers or that have no
|
||||
* resolvable bulkdata.
|
||||
*/
|
||||
async function resolveInstance(instance): Promise<void> {
|
||||
if (!instance) {
|
||||
return;
|
||||
}
|
||||
|
||||
await Promise.all(
|
||||
[...resolvedBulkDataTags].map(async tag => {
|
||||
// Registered tags are normalized to uppercase hex; naturalized datasets
|
||||
// key unknown private tags by their hex tag, so check both casings.
|
||||
const key = tag in instance ? tag : tag.toLowerCase();
|
||||
const value = instance[key];
|
||||
// Inline (already a number) or absent: nothing to resolve.
|
||||
if (value == null || typeof value !== 'object') {
|
||||
return;
|
||||
}
|
||||
try {
|
||||
const num = await resolveValueToNumber(value);
|
||||
if (num !== undefined) {
|
||||
instance[key] = num;
|
||||
}
|
||||
} catch (error) {
|
||||
console.warn(`resolveBulkDataTags: failed to resolve tag ${tag}`, error);
|
||||
}
|
||||
})
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Resolves the registered bulkdata tags across a set of naturalized
|
||||
* instances, mutating them in place.
|
||||
*/
|
||||
export async function resolveBulkDataTags(instances): Promise<void> {
|
||||
if (!Array.isArray(instances) || !instances.length) {
|
||||
return;
|
||||
}
|
||||
await Promise.all(instances.map(resolveInstance));
|
||||
}
|
||||
|
||||
export default resolveBulkDataTags;
|
||||
Loading…
Reference in New Issue
Block a user