111 lines
3.7 KiB
Plaintext
111 lines
3.7 KiB
Plaintext
/* eslint-disable no-unused-vars */
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import dcmjs from 'dcmjs'
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import { calculateSUVScalingFactors } from '@cornerstonejs/calculate-suv'
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import { getPTImageIdInstanceMetadata } from './getPTImageIdInstanceMetadata'
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import { utilities } from '@cornerstonejs/core'
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import { wadouri } from '@cornerstonejs/dicom-image-loader'
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import ptScalingMetaDataProvider from './ptScalingMetaDataProvider'
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import getPixelSpacingInformation from './getPixelSpacingInformation'
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import { convertMultiframeImageIds, prefetchMetadataInformation } from './convertMultiframeImageIds'
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import removeInvalidTags from './removeInvalidTags'
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const { calibratedPixelSpacingMetadataProvider } = utilities
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function parseImageId(imageId) {
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// build a url by parsing out the url scheme and frame index from the imageId
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const firstColonIndex = imageId.indexOf(':')
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let url = imageId.substring(firstColonIndex + 1)
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const frameIndex = url.indexOf('frame=')
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let frame
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if (frameIndex !== -1) {
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const frameStr = url.substr(frameIndex + 6)
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frame = parseInt(frameStr, 10)
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url = url.substr(0, frameIndex - 1)
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}
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return {
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scheme: imageId.substr(0, firstColonIndex),
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url,
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frame
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}
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}
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async function createImageIdsAndCacheMetaData({
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modality,
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imageIds
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}) {
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await prefetchMetadataInformation(imageIds)
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imageIds = convertMultiframeImageIds(imageIds)
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imageIds.forEach((imageId) => {
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const parseImage = parseImageId(imageId)
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const imageData =
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wadouri.dataSetCacheManager.get(parseImage.url)
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const arrayBuffer = imageData.byteArray.buffer
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var dicomData = dcmjs.data.DicomMessage.readFile(arrayBuffer)
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var dataset = dcmjs.data.DicomMetaDictionary.naturalizeDataset(
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dicomData.dict
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)
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dataset._meta = dcmjs.data.DicomMetaDictionary.namifyDataset(
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dicomData.meta
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)
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var instanceMetaData = dataset
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instanceMetaData = removeInvalidTags(instanceMetaData)
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if (instanceMetaData) {
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const pixelSpacing = getPixelSpacingInformation(instanceMetaData)
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if (pixelSpacing) {
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calibratedPixelSpacingMetadataProvider.add(
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imageId,
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// pixelSpacing.map((s) => parseFloat(s))
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{ rowPixelSpacing: parseFloat(pixelSpacing[0]),
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columnPixelSpacing: parseFloat(pixelSpacing[1])
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}
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)
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}
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}
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})
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if (modality === 'PT') {
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const InstanceMetadataArray = []
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imageIds.forEach((imageId) => {
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// var parseImage = parseImageId(imageId)
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// imageId,
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const instanceMetadata = getPTImageIdInstanceMetadata(imageId)
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if (typeof instanceMetadata.CorrectedImage === 'string') {
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instanceMetadata.CorrectedImage =
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instanceMetadata.CorrectedImage.split('\\')
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}
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if (instanceMetadata) {
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InstanceMetadataArray.push(instanceMetadata)
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}
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})
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if (InstanceMetadataArray.length) {
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// const suvScalingFactors = calculateSUVScalingFactors(
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// InstanceMetadataArray
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// )
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// InstanceMetadataArray.forEach((instanceMetadata, index) => {
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// ptScalingMetaDataProvider.addInstance(
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// imageIds[index],
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// suvScalingFactors[index]
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// )
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// })
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try {
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const suvScalingFactors = calculateSUVScalingFactors(
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InstanceMetadataArray
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)
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InstanceMetadataArray.forEach((instanceMetadata, index) => {
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ptScalingMetaDataProvider.addInstance(
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imageIds[index],
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suvScalingFactors[index]
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)
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})
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} catch (error) {
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console.log(error)
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}
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}
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}
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return imageIds
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}
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export { createImageIdsAndCacheMetaData }
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