ng-cornerstone
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183 lines • 27.7 kB
JavaScript
import { Injectable } from '@angular/core';
import { metaData, utilities } from '@cornerstonejs/core';
import { api } from 'dicomweb-client';
import cornerstoneDICOMImageLoader from '@cornerstonejs/dicom-image-loader';
import dcmjs from 'dcmjs';
import getPixelSpacingInformation from './getPixelSpacingInformation';
import { calculateSUVScalingFactors } from '@cornerstonejs/calculate-suv';
import { RequestSchema } from '../config/types';
import { getPTImageIdInstanceMetadata } from './getPTImageIdInstanceMetadata';
import ptScalingMetaDataProvider from './ptScalingMetaDataProvider';
import * as i0 from "@angular/core";
const { DicomMetaDictionary } = dcmjs.data;
export class ImageIdService {
constructor() { }
async wadoRsCreateImageIdsAndCacheMetaData(imageInfo) {
const MODALITY = '00080060';
const SOP_INSTANCE_UID = '00080018';
const { urlRoot, studyInstanceUID, seriesInstanceUID } = imageInfo;
const client = new api.DICOMwebClient({ url: urlRoot });
const instances = await client.retrieveSeriesMetadata({
studyInstanceUID,
seriesInstanceUID,
});
const modality = instances[0][MODALITY].Value[0];
let sopInstanceUIDSet;
if (imageInfo?.sopInstanceUIDs && imageInfo?.sopInstanceUIDs.length >= 0) {
sopInstanceUIDSet = new Set(imageInfo?.sopInstanceUIDs);
}
else {
const instanceUIDs = instances.map((instanceMetaData) => {
return instanceMetaData[SOP_INSTANCE_UID].Value[0];
});
sopInstanceUIDSet = new Set(instanceUIDs);
imageInfo.sopInstanceUIDs = instanceUIDs;
}
let imageIds = [];
instances.forEach((instanceMetaData) => {
const sopInstanceUID = instanceMetaData[SOP_INSTANCE_UID].Value[0];
if (sopInstanceUIDSet.has(sopInstanceUID)) {
const imageId = ImageIdService.wadoRsCreateImageIds({
...imageInfo,
sopInstanceUIDs: [sopInstanceUID],
});
imageIds.push(...imageId); // only one image id
cornerstoneDICOMImageLoader.wadors.metaDataManager.add(imageId[0], instanceMetaData);
}
});
imageIds = this.convertMultiframeImageIds(imageIds);
this.pixelSpacingProvider(imageIds);
if (modality === 'PT') {
this.ptProvider(imageIds);
}
return imageIds;
}
static createImageIds(imageInfo) {
if (imageInfo?.schema === RequestSchema.wadoRs) {
return ImageIdService.wadoRsCreateImageIds(imageInfo);
}
else if (imageInfo?.schema === RequestSchema.wadoUri) {
return ImageIdService.wadoURICreateImageIds(imageInfo);
}
return [];
}
static wadoURICreateImageIds(imageInfo) {
if (!imageInfo.sopInstanceUIDs || imageInfo.sopInstanceUIDs.length === 0) {
console.error('Invalid image info', imageInfo);
return [];
}
const { urlRoot, studyInstanceUID, seriesInstanceUID, sopInstanceUIDs } = imageInfo;
const wadoURIRoot = `${RequestSchema.wadoUri}${urlRoot}?requestType=WADO&studyUID=${studyInstanceUID}&seriesUID=${seriesInstanceUID}&contentType=application%2Fdicom`;
return sopInstanceUIDs.map((uid) => {
return `${wadoURIRoot}&objectUID=${uid}`;
});
}
static wadoRsCreateImageIds(imageInfo) {
if (!imageInfo.sopInstanceUIDs || imageInfo.sopInstanceUIDs.length === 0) {
console.error('Invalid image info', imageInfo);
return [];
}
const { urlRoot, studyInstanceUID, seriesInstanceUID, sopInstanceUIDs } = imageInfo;
const wadoURIRoot = `${RequestSchema.wadoRs}${urlRoot}/studies/${studyInstanceUID}/series/${seriesInstanceUID}`;
return sopInstanceUIDs.map((uid) => {
return `${wadoURIRoot}/instances/${uid}/frames/1`;
});
}
convertMultiframeImageIds(imageIds) {
const newImageIds = [];
imageIds.forEach((imageId) => {
const { imageIdFrameless } = this.getFrameInformation(imageId);
const instanceMetaData = metaData.get('multiframeModule', imageId);
if (instanceMetaData && instanceMetaData.NumberOfFrames && instanceMetaData.NumberOfFrames > 1) {
const NumberOfFrames = instanceMetaData.NumberOfFrames;
for (let i = 0; i < NumberOfFrames; i++) {
const newImageId = imageIdFrameless + (i + 1);
newImageIds.push(newImageId);
}
}
else
newImageIds.push(imageId);
});
return newImageIds;
}
getFrameInformation(imageId) {
if (imageId.includes('wadors:')) {
const frameIndex = imageId.indexOf('/frames/');
const imageIdFrameless = frameIndex > 0 ? imageId.slice(0, frameIndex + 8) : imageId;
return {
frameIndex,
imageIdFrameless,
};
}
else {
const frameIndex = imageId.indexOf('&frame=');
let imageIdFrameless = frameIndex > 0 ? imageId.slice(0, frameIndex + 7) : imageId;
if (!imageIdFrameless.includes('&frame=')) {
imageIdFrameless = imageIdFrameless + '&frame=';
}
return {
frameIndex,
imageIdFrameless,
};
}
}
pixelSpacingProvider(imageIds) {
imageIds.forEach((imageId) => {
let instanceMetaData = cornerstoneDICOMImageLoader.wadors.metaDataManager.get(imageId);
// It was using JSON.parse(JSON.stringify(...)) before but it is 8x slower
instanceMetaData = this.removeInvalidTags(instanceMetaData);
if (instanceMetaData) {
// Add calibrated pixel spacing
const metadata = DicomMetaDictionary.naturalizeDataset(instanceMetaData);
const pixelSpacing = getPixelSpacingInformation(metadata);
if (pixelSpacing) {
utilities.calibratedPixelSpacingMetadataProvider.add(imageId, pixelSpacing.map((s) => parseFloat(s)));
}
}
});
}
ptProvider(imageIds) {
const instanceMetadataArray = [];
imageIds.forEach((imageId) => {
const instanceMetadata = getPTImageIdInstanceMetadata(imageId);
// TODO: Temporary fix because static-wado is producing a string, not an array of values
// (or maybe dcmjs isn't parsing it correctly?)
// It's showing up like 'DECY\\ATTN\\SCAT\\DTIM\\RAN\\RADL\\DCAL\\SLSENS\\NORM'
// but calculate-suv expects ['DECY', 'ATTN', ...]
if (typeof instanceMetadata.CorrectedImage === 'string') {
instanceMetadata.CorrectedImage = instanceMetadata.CorrectedImage.split('\\');
}
if (instanceMetadata) {
instanceMetadataArray.push(instanceMetadata);
}
});
if (instanceMetadataArray.length) {
const suvScalingFactors = calculateSUVScalingFactors(instanceMetadataArray);
instanceMetadataArray.forEach((instanceMetadata, index) => {
ptScalingMetaDataProvider.addInstance(imageIds[index], suvScalingFactors[index]);
});
}
}
removeInvalidTags(srcMetadata) {
// Object.create(null) make it ~9% faster
const dstMetadata = Object.create(null);
const tagIds = Object.keys(srcMetadata);
let tagValue;
tagIds.forEach((tagId) => {
tagValue = srcMetadata[tagId];
if (tagValue !== undefined && tagValue !== null) {
dstMetadata[tagId] = tagValue;
}
});
return dstMetadata;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ImageIdService, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ImageIdService, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ImageIdService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root',
}]
}], ctorParameters: () => [] });
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{ Injectable } from '@angular/core';\nimport { metaData, utilities } from '@cornerstonejs/core';\nimport { api } from 'dicomweb-client';\nimport cornerstoneDICOMImageLoader from '@cornerstonejs/dicom-image-loader';\nimport dcmjs from 'dcmjs';\nimport getPixelSpacingInformation from './getPixelSpacingInformation';\nimport { calculateSUVScalingFactors, InstanceMetadata } from '@cornerstonejs/calculate-suv';\nimport { ImageInfo, RequestSchema } from '../config/types';\nimport { getPTImageIdInstanceMetadata } from './getPTImageIdInstanceMetadata';\nimport ptScalingMetaDataProvider from './ptScalingMetaDataProvider';\n\nconst { DicomMetaDictionary } = dcmjs.data;\n@Injectable({\n  providedIn: 'root',\n})\nexport class ImageIdService {\n  constructor() {}\n\n  async wadoRsCreateImageIdsAndCacheMetaData(imageInfo: ImageInfo): Promise<string[]> {\n    const MODALITY = '00080060';\n    const SOP_INSTANCE_UID = '00080018';\n    const { urlRoot, studyInstanceUID, seriesInstanceUID } = imageInfo;\n    const client = new api.DICOMwebClient({ url: urlRoot });\n    const instances = await client.retrieveSeriesMetadata({\n      studyInstanceUID,\n      seriesInstanceUID,\n    });\n    const modality = instances[0][MODALITY].Value[0];\n    let sopInstanceUIDSet;\n    if (imageInfo?.sopInstanceUIDs && imageInfo?.sopInstanceUIDs.length >= 0) {\n      sopInstanceUIDSet = new Set<string>(imageInfo?.sopInstanceUIDs);\n    } else {\n      const instanceUIDs = instances.map((instanceMetaData) => {\n        return instanceMetaData[SOP_INSTANCE_UID].Value[0];\n      });\n      sopInstanceUIDSet = new Set<string>(instanceUIDs);\n      imageInfo.sopInstanceUIDs = instanceUIDs;\n    }\n    let imageIds: string[] = [];\n    instances.forEach((instanceMetaData) => {\n      const sopInstanceUID = instanceMetaData[SOP_INSTANCE_UID].Value[0];\n      if (sopInstanceUIDSet.has(sopInstanceUID)) {\n        const imageId = ImageIdService.wadoRsCreateImageIds({\n          ...imageInfo,\n          sopInstanceUIDs: [sopInstanceUID],\n        });\n        imageIds.push(...imageId); // only one image id\n        cornerstoneDICOMImageLoader.wadors.metaDataManager.add(imageId[0], instanceMetaData);\n      }\n    });\n    imageIds = this.convertMultiframeImageIds(imageIds);\n\n    this.pixelSpacingProvider(imageIds);\n\n    if (modality === 'PT') {\n      this.ptProvider(imageIds);\n    }\n    return imageIds;\n  }\n\n  static createImageIds(imageInfo: ImageInfo) {\n    if (imageInfo?.schema === RequestSchema.wadoRs) {\n      return ImageIdService.wadoRsCreateImageIds(imageInfo);\n    } else if (imageInfo?.schema === RequestSchema.wadoUri) {\n      return ImageIdService.wadoURICreateImageIds(imageInfo);\n    }\n    return [];\n  }\n\n  static wadoURICreateImageIds(imageInfo: ImageInfo): string[] {\n    if (!imageInfo.sopInstanceUIDs || imageInfo.sopInstanceUIDs.length === 0) {\n      console.error('Invalid image info', imageInfo);\n      return [];\n    }\n    const { urlRoot, studyInstanceUID, seriesInstanceUID, sopInstanceUIDs } = imageInfo;\n    const wadoURIRoot = `${RequestSchema.wadoUri}${urlRoot}?requestType=WADO&studyUID=${studyInstanceUID}&seriesUID=${seriesInstanceUID}&contentType=application%2Fdicom`;\n    return sopInstanceUIDs!.map((uid) => {\n      return `${wadoURIRoot}&objectUID=${uid}`;\n    });\n  }\n\n  static wadoRsCreateImageIds(imageInfo: ImageInfo): string[] {\n    if (!imageInfo.sopInstanceUIDs || imageInfo.sopInstanceUIDs.length === 0) {\n      console.error('Invalid image info', imageInfo);\n      return [];\n    }\n    const { urlRoot, studyInstanceUID, seriesInstanceUID, sopInstanceUIDs } = imageInfo;\n    const wadoURIRoot = `${RequestSchema.wadoRs}${urlRoot}/studies/${studyInstanceUID}/series/${seriesInstanceUID}`;\n    return sopInstanceUIDs!.map((uid) => {\n      return `${wadoURIRoot}/instances/${uid}/frames/1`;\n    });\n  }\n\n  convertMultiframeImageIds(imageIds: string[]): string[] {\n    const newImageIds: string[] = [];\n    imageIds.forEach((imageId) => {\n      const { imageIdFrameless } = this.getFrameInformation(imageId);\n      const instanceMetaData = metaData.get('multiframeModule', imageId);\n      if (instanceMetaData && instanceMetaData.NumberOfFrames && instanceMetaData.NumberOfFrames > 1) {\n        const NumberOfFrames = instanceMetaData.NumberOfFrames;\n        for (let i = 0; i < NumberOfFrames; i++) {\n          const newImageId = imageIdFrameless + (i + 1);\n          newImageIds.push(newImageId);\n        }\n      } else newImageIds.push(imageId);\n    });\n    return newImageIds;\n  }\n\n  getFrameInformation(imageId): {\n    frameIndex: number;\n    imageIdFrameless: string;\n  } {\n    if (imageId.includes('wadors:')) {\n      const frameIndex = imageId.indexOf('/frames/');\n      const imageIdFrameless = frameIndex > 0 ? imageId.slice(0, frameIndex + 8) : imageId;\n      return {\n        frameIndex,\n        imageIdFrameless,\n      };\n    } else {\n      const frameIndex = imageId.indexOf('&frame=');\n      let imageIdFrameless = frameIndex > 0 ? imageId.slice(0, frameIndex + 7) : imageId;\n      if (!imageIdFrameless.includes('&frame=')) {\n        imageIdFrameless = imageIdFrameless + '&frame=';\n      }\n      return {\n        frameIndex,\n        imageIdFrameless,\n      };\n    }\n  }\n\n  pixelSpacingProvider(imageIds: string[]): void {\n    imageIds.forEach((imageId) => {\n      let instanceMetaData = cornerstoneDICOMImageLoader.wadors.metaDataManager.get(imageId);\n\n      // It was using JSON.parse(JSON.stringify(...)) before but it is 8x slower\n      instanceMetaData = this.removeInvalidTags(instanceMetaData);\n\n      if (instanceMetaData) {\n        // Add calibrated pixel spacing\n        const metadata = DicomMetaDictionary.naturalizeDataset(instanceMetaData);\n        const pixelSpacing = getPixelSpacingInformation(metadata);\n\n        if (pixelSpacing) {\n          utilities.calibratedPixelSpacingMetadataProvider.add(\n            imageId,\n            pixelSpacing.map((s) => parseFloat(s)),\n          );\n        }\n      }\n    });\n  }\n  ptProvider(imageIds: string[]): void {\n    const instanceMetadataArray: InstanceMetadata[] = [];\n    imageIds.forEach((imageId) => {\n      const instanceMetadata = getPTImageIdInstanceMetadata(imageId);\n\n      // TODO: Temporary fix because static-wado is producing a string, not an array of values\n      // (or maybe dcmjs isn't parsing it correctly?)\n      // It's showing up like 'DECY\\\\ATTN\\\\SCAT\\\\DTIM\\\\RAN\\\\RADL\\\\DCAL\\\\SLSENS\\\\NORM'\n      // but calculate-suv expects ['DECY', 'ATTN', ...]\n      if (typeof instanceMetadata.CorrectedImage === 'string') {\n        instanceMetadata.CorrectedImage = (instanceMetadata.CorrectedImage as string).split('\\\\');\n      }\n\n      if (instanceMetadata) {\n        instanceMetadataArray.push(instanceMetadata);\n      }\n    });\n    if (instanceMetadataArray.length) {\n      const suvScalingFactors = calculateSUVScalingFactors(instanceMetadataArray);\n      instanceMetadataArray.forEach((instanceMetadata, index) => {\n        ptScalingMetaDataProvider.addInstance(imageIds[index], suvScalingFactors[index]);\n      });\n    }\n  }\n\n  removeInvalidTags(srcMetadata) {\n    // Object.create(null) make it ~9% faster\n    const dstMetadata = Object.create(null);\n    const tagIds = Object.keys(srcMetadata);\n    let tagValue;\n\n    tagIds.forEach((tagId) => {\n      tagValue = srcMetadata[tagId];\n\n      if (tagValue !== undefined && tagValue !== null) {\n        dstMetadata[tagId] = tagValue;\n      }\n    });\n\n    return dstMetadata;\n  }\n}\n"]}