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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 | 34x 34x 34x 34x 34x | import { utils } from '@ohif/core';
import { metaData, cache, utilities as csUtils, volumeLoader } from '@cornerstonejs/core';
import { adaptersPMAP } from '@cornerstonejs/adapters';
import { SOPClassHandlerId } from './id';
import { dicomLoaderService } from '@ohif/extension-cornerstone';
const VOLUME_LOADER_SCHEME = 'cornerstoneStreamingImageVolume';
const sopClassUids = ['1.2.840.10008.5.1.4.1.1.30'];
function _getDisplaySetsFromSeries(
instances,
servicesManager: AppTypes.ServicesManager,
extensionManager
) {
const instance = instances[0];
const {
StudyInstanceUID,
SeriesInstanceUID,
SOPInstanceUID,
SeriesDescription,
SeriesNumber,
SeriesDate,
SOPClassUID,
wadoRoot,
wadoUri,
wadoUriRoot,
} = instance;
const displaySet = {
// Parametric map use to have the same modality as its referenced volume but
// "PMAP" is used in the viewer even though this is not a valid DICOM modality
Modality: 'PMAP',
isReconstructable: true, // by default for now
displaySetInstanceUID: `pmap.${utils.guid()}`,
SeriesDescription,
SeriesNumber,
SeriesDate,
SOPInstanceUID,
SeriesInstanceUID,
StudyInstanceUID,
SOPClassHandlerId,
SOPClassUID,
referencedImages: null,
referencedSeriesInstanceUID: null,
referencedDisplaySetInstanceUID: null,
referencedVolumeURI: null,
referencedVolumeId: null,
isDerivedDisplaySet: true,
loadStatus: {
loading: false,
loaded: false,
},
sopClassUids,
instance,
instances: [instance],
wadoRoot,
wadoUriRoot,
wadoUri,
isOverlayDisplaySet: true,
};
const referencedSeriesSequence = instance.ReferencedSeriesSequence;
Iif (!referencedSeriesSequence) {
console.error('ReferencedSeriesSequence is missing for the parametric map');
return;
}
const referencedSeries = referencedSeriesSequence[0] || referencedSeriesSequence;
displaySet.referencedImages = instance.ReferencedSeriesSequence.ReferencedInstanceSequence;
displaySet.referencedSeriesInstanceUID = referencedSeries.SeriesInstanceUID;
// Does not get the referenced displaySet during parametric displaySet creation
// because it is still not available (getDisplaySetByUID returns `undefined`).
displaySet.getReferenceDisplaySet = () => {
const { displaySetService } = servicesManager.services;
Iif (displaySet.referencedDisplaySetInstanceUID) {
return displaySetService.getDisplaySetByUID(displaySet.referencedDisplaySetInstanceUID);
}
const referencedDisplaySets = displaySetService.getDisplaySetsForSeries(
displaySet.referencedSeriesInstanceUID
);
Iif (!referencedDisplaySets || referencedDisplaySets.length === 0) {
throw new Error('Referenced displaySet is missing for the parametric map');
}
const referencedDisplaySet = referencedDisplaySets[0];
displaySet.referencedDisplaySetInstanceUID = referencedDisplaySet.displaySetInstanceUID;
return referencedDisplaySet;
};
// Does not get the referenced volumeId during parametric displaySet creation because the
// referenced displaySet is still not available (getDisplaySetByUID returns `undefined`).
displaySet.getReferencedVolumeId = () => {
Iif (displaySet.referencedVolumeId) {
return displaySet.referencedVolumeId;
}
const referencedDisplaySet = displaySet.getReferenceDisplaySet();
const referencedVolumeURI = referencedDisplaySet.displaySetInstanceUID;
const referencedVolumeId = `${VOLUME_LOADER_SCHEME}:${referencedVolumeURI}`;
displaySet.referencedVolumeURI = referencedVolumeURI;
displaySet.referencedVolumeId = referencedVolumeId;
return referencedVolumeId;
};
displaySet.load = async ({ headers }) =>
await _load(displaySet, servicesManager, extensionManager, headers);
return [displaySet];
}
const getRangeFromPixelData = (pixelData: Float32Array) => {
let lowest = pixelData[0];
let highest = pixelData[0];
for (let i = 1; i < pixelData.length; i++) {
Iif (pixelData[i] < lowest) {
lowest = pixelData[i];
}
Iif (pixelData[i] > highest) {
highest = pixelData[i];
}
}
return [lowest, highest];
};
async function _load(
displaySet,
servicesManager: AppTypes.ServicesManager,
extensionManager,
headers
) {
const volumeId = `${VOLUME_LOADER_SCHEME}:${displaySet.displaySetInstanceUID}`;
const volumeLoadObject = cache.getVolumeLoadObject(volumeId);
Iif (volumeLoadObject) {
return volumeLoadObject.promise;
}
displaySet.loading = true;
displaySet.isLoaded = false;
// We don't want to fire multiple loads, so we'll wait for the first to finish
// and also return the same promise to any other callers.
const promise = _loadParametricMap({
extensionManager,
displaySet,
headers,
});
cache.putVolumeLoadObject(volumeId, { promise }).catch(err => {
throw err;
});
promise
.then(() => {
displaySet.loading = false;
displaySet.isLoaded = true;
// Broadcast that loading is complete
servicesManager.services.segmentationService._broadcastEvent(
servicesManager.services.segmentationService.EVENTS.SEGMENTATION_LOADING_COMPLETE,
{
pmapDisplaySet: displaySet,
}
);
})
.catch(err => {
displaySet.loading = false;
displaySet.isLoaded = false;
throw err;
});
return promise;
}
async function _loadParametricMap({ displaySet, headers }: withAppTypes) {
const arrayBuffer = await dicomLoaderService.findDicomDataPromise(displaySet, null, headers);
const referencedVolumeId = displaySet.getReferencedVolumeId();
const cachedReferencedVolume = cache.getVolume(referencedVolumeId);
// Parametric map can be loaded only if its referenced volume exists otherwise it will fail
Iif (!cachedReferencedVolume) {
throw new Error(
'Referenced Volume is missing for the PMAP, and stack viewport PMAP is not supported yet'
);
}
const { imageIds } = cachedReferencedVolume;
const results = await adaptersPMAP.Cornerstone3D.ParametricMap.generateToolState(
imageIds,
arrayBuffer,
metaData
);
const { pixelData } = results;
const TypedArrayConstructor = pixelData.constructor;
const paramMapId = displaySet.displaySetInstanceUID;
const derivedVolume = await volumeLoader.createAndCacheDerivedVolume(referencedVolumeId, {
volumeId: paramMapId,
targetBuffer: {
type: TypedArrayConstructor.name,
},
});
const newPixelData = new TypedArrayConstructor(pixelData.length);
for (let i = 0; i < pixelData.length; i++) {
newPixelData[i] = pixelData[i] * 100;
}
derivedVolume.voxelManager.setCompleteScalarDataArray(newPixelData);
const range = getRangeFromPixelData(newPixelData);
const windowLevel = csUtils.windowLevel.toWindowLevel(range[0], range[1]);
derivedVolume.metadata.voiLut = [windowLevel];
derivedVolume.loadStatus = { loaded: true };
return derivedVolume;
}
function getSopClassHandlerModule({ servicesManager, extensionManager }) {
const getDisplaySetsFromSeries = instances => {
return _getDisplaySetsFromSeries(instances, servicesManager, extensionManager);
};
return [
{
name: 'dicom-pmap',
sopClassUids,
getDisplaySetsFromSeries,
},
];
}
export default getSopClassHandlerModule;
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