cornerstone-wado-image-loader
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Cornerstone Image Loader for DICOM WADO-URI and WADO-RS
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<h2><a href="index.html">Home</a></h2><h3>Global</h3><ul><li><a href="global.html#addTask">addTask</a></li><li><a href="global.html#arrayBufferToString">arrayBufferToString</a></li><li><a href="global.html#cacheSizeInBytes">cacheSizeInBytes</a></li><li><a href="global.html#cancelTask">cancelTask</a></li><li><a href="global.html#decodeAsync">decodeAsync</a></li><li><a href="global.html#decodeImageFrame">decodeImageFrame</a></li><li><a href="global.html#extractOrientationFromDataset">extractOrientationFromDataset</a></li><li><a href="global.html#extractOrientationFromMetadata">extractOrientationFromMetadata</a></li><li><a href="global.html#extractOrientationFromNMMultiframeDataset">extractOrientationFromNMMultiframeDataset</a></li><li><a href="global.html#extractOrientationFromNMMultiframeMetadata">extractOrientationFromNMMultiframeMetadata</a></li><li><a href="global.html#extractPositionFromDataset">extractPositionFromDataset</a></li><li><a href="global.html#extractPositionFromMetadata">extractPositionFromMetadata</a></li><li><a href="global.html#extractPositionFromNMMultiframeDataset">extractPositionFromNMMultiframeDataset</a></li><li><a href="global.html#extractPositionFromNMMultiframeMetadata">extractPositionFromNMMultiframeMetadata</a></li><li><a href="global.html#extractSliceThicknessFromDataset">extractSliceThicknessFromDataset</a></li><li><a href="global.html#extractSpacingFromDataset">extractSpacingFromDataset</a></li><li><a href="global.html#framesAreFragmented">framesAreFragmented</a></li><li><a href="global.html#getImageTypeSubItemFromDataset">getImageTypeSubItemFromDataset</a></li><li><a href="global.html#getImageTypeSubItemFromMetadata">getImageTypeSubItemFromMetadata</a></li><li><a href="global.html#getMinMax">getMinMax</a></li><li><a href="global.html#getNumberString">getNumberString</a></li><li><a href="global.html#getNumberValues">getNumberValues</a></li><li><a href="global.html#getStatistics">getStatistics</a></li><li><a href="global.html#getTransferSyntaxForContentType">getTransferSyntaxForContentType</a></li><li><a href="global.html#getUncompressedImageFrame">getUncompressedImageFrame</a></li><li><a href="global.html#getValue">getValue</a></li><li><a href="global.html#handleMessageFromWorker">handleMessageFromWorker</a></li><li><a href="global.html#handler">handler</a></li><li><a href="global.html#initialize">initialize</a></li><li><a href="global.html#loadCodecs">loadCodecs</a></li><li><a href="global.html#loadWebWorkerTask">loadWebWorkerTask</a></li><li><a href="global.html#registerLoaders">registerLoaders</a></li><li><a href="global.html#registerTaskHandler">registerTaskHandler</a></li><li><a href="global.html#removeAFromRGBA">removeAFromRGBA</a></li><li><a href="global.html#setPixelDataType">setPixelDataType</a></li><li><a href="global.html#setTaskPriority">setTaskPriority</a></li><li><a href="global.html#spawnWebWorker">spawnWebWorker</a></li><li><a href="global.html#startTaskOnWebWorker">startTaskOnWebWorker</a></li><li><a href="global.html#terminate">terminate</a></li><li><a href="global.html#unpackBinaryFrame">unpackBinaryFrame</a></li></ul>
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<h1 class="page-title">imageLoader/wadors/metaData/NMHelpers.js</h1>
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<pre class="prettyprint source linenums"><code>import getTagValue from '../getTagValue.js';
import getValue from './getValue.js';
import isNMReconstructable from '../../isNMReconstructable.js';
import getNumberValues from './getNumberValues.js';
function isNMModality(metaData) {
const modality = getValue(metaData['00080060']);
return modality.includes('NM');
}
/**
* Get a subpart of Image Type dicom tag defined by index
* @param {*} metaData
* @param {*} index 0 based index of the subtype
*/
function getImageTypeSubItemFromMetadata(metaData, index) {
const imageType = getTagValue(metaData['00080008'], false);
if (imageType) {
// const subTypes = imageType.split('\\');
// if (subTypes.length > index) {
// return subTypes[index];
// }
return imageType[index];
}
return undefined;
}
/**
* Extracts the orientation from NM multiframe metadata, if image type
* equal to RECON TOMO or RECON GATED TOMO
* @param {*} metaData
*/
function extractOrientationFromNMMultiframeMetadata(metaData) {
let imageOrientationPatient;
const imageSubType = getImageTypeSubItemFromMetadata(metaData, 2);
if (imageSubType && isNMReconstructable(imageSubType)) {
const detectorInformationSequence = getTagValue(metaData['00540022']);
if (detectorInformationSequence) {
imageOrientationPatient = getNumberValues(
detectorInformationSequence['00200037'],
6
);
}
}
return imageOrientationPatient;
}
/**
* Extracts the position from NM multiframe dataset, if image type
* equal to RECON TOMO or RECON GATED TOMO
* @param {*} metaData
*/
function extractPositionFromNMMultiframeMetadata(metaData) {
let imagePositionPatient;
const imageSubType = getImageTypeSubItemFromMetadata(metaData, 2);
if (imageSubType && isNMReconstructable(imageSubType)) {
const detectorInformationSequence = getTagValue(metaData['00540022']);
if (detectorInformationSequence) {
imagePositionPatient = getNumberValues(
detectorInformationSequence['00200032'],
3
);
}
}
return imagePositionPatient;
}
export {
extractOrientationFromNMMultiframeMetadata,
extractPositionFromNMMultiframeMetadata,
isNMModality,
getImageTypeSubItemFromMetadata,
};
</code></pre>
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