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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 | 34x 34x 2x 2x 2x 36x 36x 1x 1x 35x 2426x 2426x 2426x 2426x 2x 2x 36x 2x 36x 36x 36x 36x 35x 2426x 2426x 2426x 2426x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 36x 36x 36x 1x 35x 35x 35x 35x 2426x 2426x 2426x 2426x 652343x 2426x 2426x 2426x 2426x 2426x 2426x 35x 2x 35x 513x 35x 35x 35x 35x 35x 35x 35x 35x 35x 35x 513x 35x 35x 35x 35x | import dcmjs from 'dcmjs';
const { DicomMessage, DicomMetaDictionary } = dcmjs.data;
const dicomlab2RGB = dcmjs.data.Colors.dicomlab2RGB;
async function checkAndLoadContourData(instance, datasource) {
Iif (!instance || !instance.ROIContourSequence) {
return Promise.reject('Invalid instance object or ROIContourSequence');
}
const promisesMap = new Map();
for (const ROIContour of instance.ROIContourSequence) {
const referencedROINumber = ROIContour.ReferencedROINumber;
if (!ROIContour || !ROIContour.ContourSequence) {
promisesMap.set(referencedROINumber, [Promise.resolve([])]);
continue;
}
for (const Contour of ROIContour.ContourSequence) {
Iif (!Contour || !Contour.ContourData) {
return Promise.reject('Invalid Contour or ContourData');
}
const contourData = Contour.ContourData;
if (Array.isArray(contourData)) {
promisesMap.has(referencedROINumber)
? promisesMap.get(referencedROINumber).push(Promise.resolve(contourData))
: promisesMap.set(referencedROINumber, [Promise.resolve(contourData)]);
} else Eif (contourData && contourData.BulkDataURI) {
const bulkDataURI = contourData.BulkDataURI;
Iif (!datasource || !datasource.retrieve || !datasource.retrieve.bulkDataURI) {
return Promise.reject('Invalid datasource object or retrieve function');
}
const bulkDataPromise = datasource.retrieve.bulkDataURI({
BulkDataURI: bulkDataURI,
StudyInstanceUID: instance.StudyInstanceUID,
SeriesInstanceUID: instance.SeriesInstanceUID,
SOPInstanceUID: instance.SOPInstanceUID,
});
promisesMap.has(referencedROINumber)
? promisesMap.get(referencedROINumber).push(bulkDataPromise)
: promisesMap.set(referencedROINumber, [bulkDataPromise]);
} else {
return Promise.reject(`Invalid ContourData: ${contourData}`);
}
}
}
const resolvedPromisesMap = new Map();
for (const [key, promiseArray] of promisesMap.entries()) {
resolvedPromisesMap.set(key, await Promise.allSettled(promiseArray));
}
instance.ROIContourSequence.forEach(ROIContour => {
try {
const referencedROINumber = ROIContour.ReferencedROINumber;
const resolvedPromises = resolvedPromisesMap.get(referencedROINumber);
if (ROIContour.ContourSequence) {
ROIContour.ContourSequence.forEach((Contour, index) => {
const promise = resolvedPromises[index];
if (promise.status === 'fulfilled') {
if (Array.isArray(promise.value) && promise.value.every(Number.isFinite)) {
// If promise.value is already an array of numbers, use it directly
Contour.ContourData = promise.value;
} else E{
// If the resolved promise value is a byte array (Blob), it needs to be decoded
const uint8Array = new Uint8Array(promise.value);
const textDecoder = new TextDecoder();
const dataUint8Array = textDecoder.decode(uint8Array);
if (typeof dataUint8Array === 'string' && dataUint8Array.includes('\\')) {
Contour.ContourData = dataUint8Array.split('\\').map(parseFloat);
} else {
Contour.ContourData = [];
}
}
} else E{
console.error(promise.reason);
}
});
}
} catch (error) {
console.error(error);
}
});
}
export default async function loadRTStruct(extensionManager, rtStructDisplaySet, headers) {
const utilityModule = extensionManager.getModuleEntry(
'@ohif/extension-cornerstone.utilityModule.common'
);
const dataSource = extensionManager.getActiveDataSource()[0];
const { bulkDataURI } = dataSource.getConfig?.() || {};
const { dicomLoaderService } = utilityModule.exports;
// Set here is loading is asynchronous.
// If this function throws its set back to false.
rtStructDisplaySet.isLoaded = true;
let instance = rtStructDisplaySet.instance;
Iif (!bulkDataURI || !bulkDataURI.enabled) {
const segArrayBuffer = await dicomLoaderService.findDicomDataPromise(
rtStructDisplaySet,
null,
headers
);
const dicomData = DicomMessage.readFile(segArrayBuffer);
const rtStructDataset = DicomMetaDictionary.naturalizeDataset(dicomData.dict);
rtStructDataset._meta = DicomMetaDictionary.namifyDataset(dicomData.meta);
instance = rtStructDataset;
} else {
await checkAndLoadContourData(instance, dataSource);
}
const { StructureSetROISequence, ROIContourSequence, RTROIObservationsSequence } = instance;
// Define our structure set entry and add it to the rtstruct module state.
const structureSet = {
StructureSetLabel: instance.StructureSetLabel,
SeriesInstanceUID: instance.SeriesInstanceUID,
ROIContours: [],
visible: true,
ReferencedSOPInstanceUIDsSet: new Set(),
};
for (let i = 0; i < ROIContourSequence.length; i++) {
const ROIContour = ROIContourSequence[i];
const { ContourSequence } = ROIContour;
if (!ContourSequence) {
continue;
}
const isSupported = false;
const ContourSequenceArray = _toArray(ContourSequence);
const contourPoints = [];
for (let c = 0; c < ContourSequenceArray.length; c++) {
const { ContourData, NumberOfContourPoints, ContourGeometricType, ContourImageSequence } =
ContourSequenceArray[c];
let isSupported = false;
const points = [];
for (let p = 0; p < NumberOfContourPoints * 3; p += 3) {
points.push({
x: ContourData[p],
y: ContourData[p + 1],
z: ContourData[p + 2],
});
}
switch (ContourGeometricType) {
case 'CLOSED_PLANAR':
case 'OPEN_PLANAR':
case 'POINT':
isSupported = true;
break;
default:
continue;
}
contourPoints.push({
numberOfPoints: NumberOfContourPoints,
points,
type: ContourGeometricType,
isSupported,
});
if (ContourImageSequence?.ReferencedSOPInstanceUID) {
structureSet.ReferencedSOPInstanceUIDsSet.add(
ContourImageSequence?.ReferencedSOPInstanceUID
);
}
}
_setROIContourMetadata(
structureSet,
StructureSetROISequence,
RTROIObservationsSequence,
ROIContour,
contourPoints,
isSupported
);
}
return structureSet;
}
function _setROIContourMetadata(
structureSet,
StructureSetROISequence,
RTROIObservationsSequence,
ROIContour,
contourPoints,
isSupported
) {
const StructureSetROI = StructureSetROISequence.find(
structureSetROI => structureSetROI.ROINumber === ROIContour.ReferencedROINumber
);
const ROIContourData = {
ROINumber: StructureSetROI.ROINumber,
ROIName: StructureSetROI.ROIName,
ROIGenerationAlgorithm: StructureSetROI.ROIGenerationAlgorithm,
ROIDescription: StructureSetROI.ROIDescription,
isSupported,
contourPoints,
visible: true,
};
_setROIContourDataColor(ROIContour, ROIContourData);
if (RTROIObservationsSequence) {
// If present, add additional RTROIObservations metadata.
_setROIContourRTROIObservations(
ROIContourData,
RTROIObservationsSequence,
ROIContour.ReferencedROINumber
);
}
structureSet.ROIContours.push(ROIContourData);
}
function _setROIContourDataColor(ROIContour, ROIContourData) {
let { ROIDisplayColor, RecommendedDisplayCIELabValue } = ROIContour;
Iif (!ROIDisplayColor && RecommendedDisplayCIELabValue) {
// If ROIDisplayColor is absent, try using the RecommendedDisplayCIELabValue color.
ROIDisplayColor = dicomlab2RGB(RecommendedDisplayCIELabValue);
}
if (ROIDisplayColor) {
ROIContourData.colorArray = [...ROIDisplayColor];
}
}
function _setROIContourRTROIObservations(ROIContourData, RTROIObservationsSequence, ROINumber) {
const RTROIObservations = RTROIObservationsSequence.find(
RTROIObservations => RTROIObservations.ReferencedROINumber === ROINumber
);
if (RTROIObservations) {
// Deep copy so we don't keep the reference to the dcmjs dataset entry.
const { ObservationNumber, ROIObservationDescription, RTROIInterpretedType, ROIInterpreter } =
RTROIObservations;
ROIContourData.RTROIObservations = {
ObservationNumber,
ROIObservationDescription,
RTROIInterpretedType,
ROIInterpreter,
};
}
}
function _toArray(objOrArray) {
return Array.isArray(objOrArray) ? objOrArray : [objOrArray];
}
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