127 lines
4.9 KiB
JavaScript
Executable File
127 lines
4.9 KiB
JavaScript
Executable File
/**
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* Parses the SourceImageSequence, if it exists, in order
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* to return a ReferenceSOPInstanceUID. The ReferenceSOPInstanceUID
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* is used to refer to this image in any accompanying DICOM-SR documents.
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*
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* @param instance
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* @returns {String} The ReferenceSOPInstanceUID
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*/
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function getSourceImageInstanceUid(instance) {
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// TODO= Parse the whole Source Image Sequence
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// This is a really poor workaround for now.
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// Later we should probably parse the whole sequence.
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var SourceImageSequence = instance[0x00082112];
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log.info('SourceImageSequence ' + SourceImageSequence);
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if (SourceImageSequence && SourceImageSequence.length) {
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return SourceImageSequence[0][0x00081155];
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}
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}
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/**
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* Parses result data from a DIMSE search into Study MetaData
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* Returns an object populated with study metadata, including the
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* series list.
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*
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* @param resultData
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* @returns {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
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*/
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function resultDataToStudyMetadata(studyInstanceUid, resultData) {
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log.info('resultDataToStudyMetadata');
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var seriesMap = {};
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var seriesList = [];
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if (!resultData.length) {
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return;
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}
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var anInstance = resultData[0].toObject();
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if (!anInstance) {
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return;
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}
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var studyData = {
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seriesList: seriesList,
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patientName: anInstance[0x00100010],
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patientId: anInstance[0x00100020],
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accessionNumber: anInstance[0x00080050],
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studyDate: anInstance[0x00080020],
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modalities: anInstance[0x00080061],
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studyDescription: anInstance[0x00081030],
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imageCount: anInstance[0x00201208],
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studyInstanceUid: anInstance[0x0020000D]
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};
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resultData.forEach(function(instanceRaw) {
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var instance = instanceRaw.toObject();
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var seriesInstanceUid = instance[0x0020000E];
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var series = seriesMap[seriesInstanceUid];
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if (!series) {
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series = {
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seriesDescription: instance[0x0008103E],
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modality: instance[0x00080060],
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seriesInstanceUid: seriesInstanceUid,
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seriesNumber: parseFloat(instance[0x00200011]),
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instances: []
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};
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seriesMap[seriesInstanceUid] = series;
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seriesList.push(series);
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}
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var sopInstanceUid = instance[0x00080018];
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var instanceSummary = {
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imageType: instance[0x00080008],
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sopClassUid: instance[0x00080016],
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sopInstanceUid: sopInstanceUid,
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instanceNumber: parseFloat(instance[0x00200013]),
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imagePositionPatient: instance[0x00200032],
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imageOrientationPatient: instance[0x00200037],
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frameOfReferenceUID: instance[0x00200052],
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sliceLocation: parseFloat(instance[0x00201041]),
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samplesPerPixel: parseFloat(instance[0x00280002]),
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photometricInterpretation: instance[0x00280004],
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rows: parseFloat(instance[0x00280010]),
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columns: parseFloat(instance[0x00280011]),
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pixelSpacing: instance[0x00280030],
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bitsAllocated: parseFloat(instance[0x00280100]),
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bitsStored: parseFloat(instance[0x00280101]),
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highBit: parseFloat(instance[0x00280102]),
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pixelRepresentation: parseFloat(instance[0x00280103]),
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windowCenter: instance[0x00281050],
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windowWidth: instance[0x00281051],
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rescaleIntercept: parseFloat(instance[0x00281052]),
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rescaleSlope: parseFloat(instance[0x00281053]),
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sourceImageInstanceUid: getSourceImageInstanceUid(instance),
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laterality: instance[0x00200062],
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viewPosition: instance[0x00185101],
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numFrames: parseFloat(instance[0x00280008]),
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frameRate: parseFloat(instance[0x00181063])
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};
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// Retrieve the actual data over WADO-URI
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var server = Meteor.settings.dicomWeb.endpoints[0];
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instanceSummary.wadouri = server.wadoUriRoot + '?requestType=WADO&studyUID=' + studyInstanceUid + '&seriesUID=' + seriesInstanceUid + '&objectUID=' + sopInstanceUid + "&contentType=application%2Fdicom";
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series.instances.push(instanceSummary);
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});
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return studyData;
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}
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/**
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* Retrieved Study MetaData from a DICOM server using DIMSE
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* @param studyInstanceUid
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* @returns {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
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*/
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Services.DIMSE.RetrieveMetadata = function(studyInstanceUid) {
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var result = DIMSE.retrieveInstances(studyInstanceUid);
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var study = resultDataToStudyMetadata(studyInstanceUid, result);
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if (!study) {
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study = {};
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}
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study.studyInstanceUid = studyInstanceUid;
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return study;
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};
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