First pass at a Hanging Protocol implementation and editor (LT-131)

2016-05-07 12:40:02 +02:00
1 parent dfcb33153f
commit 2e52d9e3c1
@@ -0,0 +1,144 @@
+/**
+ * Creates a URL for a WADO search
+ *
+ * @param server
+ * @param studyInstanceUid
+ * @returns {string}
+ */
+function buildUrl(server, studyInstanceUid) {
+    return server.wadoRoot + '/studies/' + studyInstanceUid + '/metadata';
+}
+
+/**
+ * Parses the SourceImageSequence, if it exists, in order
+ * to return a ReferenceSOPInstanceUID. The ReferenceSOPInstanceUID
+ * is used to refer to this image in any accompanying DICOM-SR documents.
+ *
+ * @param instance
+ * @returns {String} The ReferenceSOPInstanceUID
+ */
+function getSourceImageInstanceUid(instance) {
+    // TODO= Parse the whole Source Image Sequence
+    // This is a really poor workaround for now.
+    // Later we should probably parse the whole sequence.
+    var SourceImageSequence = instance['00082112'];
+    if (SourceImageSequence && SourceImageSequence.Value && SourceImageSequence.Value.length) {
+        return SourceImageSequence.Value[0]['00081155'].Value[0];
+    }
+}
+
+/**
+ * Parses result data from a WADO search into Study MetaData
+ * Returns an object populated with study metadata, including the
+ * series list.
+ *
+ * @param server
+ * @param studyInstanceUid
+ * @param resultData
+ * @returns {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
+ */
+function resultDataToStudyMetadata(server, studyInstanceUid, resultData) {
+    var seriesMap = {};
+    var seriesList = [];
+
+    if (!resultData.length) {
+        return;
+    }
+
+    var anInstance = resultData[0];
+    if (!anInstance) {
+        return;
+    }
+
+    var studyData = {
+        seriesList: seriesList,
+        patientName: DICOMWeb.getName(anInstance['00100010']),
+        patientId: DICOMWeb.getString(anInstance['00100020']),
+        accessionNumber: DICOMWeb.getString(anInstance['00080050']),
+        studyDate: DICOMWeb.getString(anInstance['00080020']),
+        modalities: DICOMWeb.getString(anInstance['00080061']),
+        studyDescription: DICOMWeb.getString(anInstance['00081030']),
+        imageCount: DICOMWeb.getString(anInstance['00201208']),
+        studyInstanceUid: DICOMWeb.getString(anInstance['0020000D'])
+    };
+
+    resultData.forEach(function(instance) {
+        var seriesInstanceUid = DICOMWeb.getString(instance['0020000E']);
+        var series = seriesMap[seriesInstanceUid];
+        if (!series) {
+            series = {
+                seriesDescription: DICOMWeb.getString(instance['0008103E']),
+                modality: DICOMWeb.getString(instance['00080060']),
+                seriesInstanceUid: seriesInstanceUid,
+                seriesNumber: DICOMWeb.getNumber(instance['00200011']),
+                instances: []
+            };
+            seriesMap[seriesInstanceUid] = series;
+            seriesList.push(series);
+        }
+
+        var sopInstanceUid = DICOMWeb.getString(instance['00080018']);
+
+        var instanceSummary = {
+            imageType: DICOMWeb.getString(instance['00080008']),
+            sopClassUid: DICOMWeb.getString(instance['00080016']),
+            sopInstanceUid: sopInstanceUid,
+            instanceNumber: DICOMWeb.getNumber(instance['00200013']),
+            imagePositionPatient: DICOMWeb.getString(instance['00200032']),
+            imageOrientationPatient: DICOMWeb.getString(instance['00200037']),
+            frameOfReferenceUID: DICOMWeb.getString(instance['00200052']),
+            sliceLocation: DICOMWeb.getNumber(instance['00201041']),
+            samplesPerPixel: DICOMWeb.getNumber(instance['00280002']),
+            photometricInterpretation: DICOMWeb.getString(instance['00280004']),
+            rows: DICOMWeb.getNumber(instance['00280010']),
+            columns: DICOMWeb.getNumber(instance['00280011']),
+            pixelSpacing: DICOMWeb.getString(instance['00280030']),
+            bitsAllocated: DICOMWeb.getNumber(instance['00280100']),
+            bitsStored: DICOMWeb.getNumber(instance['00280101']),
+            highBit: DICOMWeb.getNumber(instance['00280102']),
+            pixelRepresentation: DICOMWeb.getNumber(instance['00280103']),
+            windowCenter: DICOMWeb.getString(instance['00281050']),
+            windowWidth: DICOMWeb.getString(instance['00281051']),
+            rescaleIntercept: DICOMWeb.getNumber(instance['00281052']),
+            rescaleSlope: DICOMWeb.getNumber(instance['00281053']),
+            sourceImageInstanceUid: getSourceImageInstanceUid(instance),
+            laterality: DICOMWeb.getString(instance['00200062']),
+            viewPosition: DICOMWeb.getString(instance['00185101']),
+            numFrames: DICOMWeb.getNumber(instance['00280008']),
+            frameTime: DICOMWeb.getNumber(instance['00181063']),
+            sliceThickness: DICOMWeb.getNumber(instance['00180050'])
+        };
+
+        if (server.imageRendering === 'wadouri') {
+            instanceSummary.wadouri = server.wadoUriRoot + '?requestType=WADO&studyUID=' + studyInstanceUid + '&seriesUID=' + seriesInstanceUid + '&objectUID=' + sopInstanceUid + '&contentType=application%2Fdicom';
+        } else {
+            instanceSummary.wadorsuri = server.wadoRoot + '/studies/' + studyInstanceUid + '/series/' + seriesInstanceUid + '/instances/' + sopInstanceUid + '/frames/1';
+        }
+
+        series.instances.push(instanceSummary);
+    });
+
+    return studyData;
+}
+
+/**
+ * Retrieved Study MetaData from a DICOM server using a WADO call
+ * @param server
+ * @param studyInstanceUid
+ * @returns {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
+ */
+Services.WADO.RetrieveMetadata = function(server, studyInstanceUid) {
+    var url = buildUrl(server, studyInstanceUid);
+
+    var result = DICOMWeb.getJSON(url, server.requestOptions);
+
+    var study = resultDataToStudyMetadata(server, studyInstanceUid, result.data);
+    if (!study) {
+        study = {};
+    }
+
+    study.wadoUriRoot = server.wadoUriRoot;
+    study.studyInstanceUid = studyInstanceUid;
+
+    return study;
+};