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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 | 342x 342x 342x 342x 342x 342x | import * as metaData from '../metaData';
import type { ScalingParameters } from '../types';
/**
* It returns the scaling parameters for the image with the given imageId. This can be
* used to get passed (as an option) to the imageLoader in order to apply scaling to the image inside
* the imageLoader.
* @param imageId - The imageId of the image
* @returns ScalingParameters
*/
export default function getScalingParameters(
imageId: string
): ScalingParameters {
const modalityLutModule = metaData.get('modalityLutModule', imageId) || {};
const generalSeriesModule =
metaData.get('generalSeriesModule', imageId) || {};
const { modality } = generalSeriesModule;
const scalingParameters = {
rescaleSlope: modalityLutModule.rescaleSlope || 1,
rescaleIntercept: modalityLutModule.rescaleIntercept ?? 0,
modality,
};
const scalingModules = metaData.get('scalingModule', imageId) || {};
return {
...scalingParameters,
...(modality === 'PT' && {
suvbw: scalingModules.suvbw,
suvbsa: scalingModules.suvbsa,
suvlbm: scalingModules.suvlbm,
}),
...(modality === 'RTDOSE' && {
doseGridScaling: scalingModules.DoseGridScaling,
doseSummation: scalingModules.DoseSummation,
doseType: scalingModules.DoseType,
doseUnit: scalingModules.DoseUnit,
}),
};
}
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