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Merge pull request #17 from gradienthealth/gradienthealth/auto_flippi…
…ng_on_stack_viewport Implement auto flipping of disoriented mammogram images on stack viewport
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| import { getImageFlips } from './getImageFlips'; | ||
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| const orientationDirectionVectorMap = { | ||
| L: [1, 0, 0], // Left | ||
| R: [-1, 0, 0], // Right | ||
| P: [0, 1, 0], // Posterior/ Back | ||
| A: [0, -1, 0], // Anterior/ Front | ||
| H: [0, 0, 1], // Head/ Superior | ||
| F: [0, 0, -1], // Feet/ Inferior | ||
| }; | ||
|
|
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| const getDirectionsFromPatientOrientation = patientOrientation => { | ||
| if (typeof patientOrientation === 'string') { | ||
| patientOrientation = patientOrientation.split('\\'); | ||
| } | ||
|
|
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| return { | ||
| rowDirection: patientOrientation[0], | ||
| columnDirection: patientOrientation[1][0], | ||
| }; | ||
| }; | ||
|
|
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| const getOrientationStringLPS = vector => { | ||
| const sampleVectorDirectionMap = { | ||
| '1,0,0': 'L', | ||
| '-1,0,0': 'R', | ||
| '0,1,0': 'P', | ||
| '0,-1,0': 'A', | ||
| '0,0,1': 'H', | ||
| '0,0,-1': 'F', | ||
| }; | ||
|
|
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| return sampleVectorDirectionMap[vector.toString()]; | ||
| }; | ||
|
|
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| jest.mock('@cornerstonejs/tools ', () => ({ | ||
| utilities: { orientation: { getOrientationStringLPS } }, | ||
| })); | ||
| jest.mock('@ohif/core', () => ({ | ||
| defaults: { orientationDirectionVectorMap }, | ||
| utils: { getDirectionsFromPatientOrientation }, | ||
| })); | ||
|
|
||
| describe('getImageFlips', () => { | ||
| test('should return empty object if none of the parameters are provided', () => { | ||
| const flipsNeeded = getImageFlips({}); | ||
| expect(flipsNeeded).toEqual({}); | ||
| }); | ||
|
|
||
| test('should return empty object if ImageOrientationPatient and PatientOrientation is not provided', () => { | ||
| const ImageLaterality = 'L'; | ||
| const flipsNeeded = getImageFlips({ | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({}); | ||
| }); | ||
|
|
||
| test('should return empty object if ImageLaterality is not privided', () => { | ||
| const ImageOrientationPatient = [0, 1, 0, 0, 0, 1], | ||
| PatientOrientation = ['P', 'H']; | ||
| const flipsNeeded = getImageFlips({ | ||
| ImageOrientationPatient, | ||
| PatientOrientation, | ||
| }); | ||
| expect(flipsNeeded).toEqual({}); | ||
| }); | ||
|
|
||
| test('should return { hFlip: false, vFlip: false } if ImageOrientationPatient is [0, 1, 0, 0, 0, -1] and ImageLaterality is R', () => { | ||
| const ImageOrientationPatient = [0, 1, 0, 0, 0, -1], | ||
| PatientOrientation = ['P', 'F'], | ||
| ImageLaterality = 'R'; | ||
| const flipsNeeded = getImageFlips({ | ||
| ImageOrientationPatient, | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: false, vFlip: false }); | ||
| }); | ||
|
|
||
| test('should return { hFlip: false, vFlip: true } if ImageOrientationPatient is [0, -1, 0, 0, 0, 1] and ImageLaterality is L', () => { | ||
| const ImageOrientationPatient = [0, -1, 0, 0, 0, 1], | ||
| ImageLaterality = 'L'; | ||
| const flipsNeeded = getImageFlips({ | ||
| ImageOrientationPatient, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: false, vFlip: true }); | ||
| }); | ||
|
|
||
| test('should return { hFlip: true, vFlip: true } if ImageOrientationPatient is [0, -1, 0, -1, 0, 0] and ImageLaterality is R', () => { | ||
| const ImageOrientationPatient = [0, -1, 0, -1, 0, 0], | ||
| ImageLaterality = 'R'; | ||
| const flipsNeeded = getImageFlips({ | ||
| ImageOrientationPatient, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: true, vFlip: true }); | ||
| }); | ||
|
|
||
| test("should return { hFlip: true, vFlip: true } if ImageOrientationPatient is not present, PatientOrientation is ['P', 'H'] and ImageLaterality is L", () => { | ||
| const PatientOrientation = ['P', 'H'], | ||
| ImageLaterality = 'L'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: true, vFlip: true }); | ||
| }); | ||
|
|
||
| test("should return { hFlip: true, vFlip: false } if ImageOrientationPatient is not present, PatientOrientation is ['A', 'F'] and ImageLaterality is R", () => { | ||
| const PatientOrientation = ['A', 'F'], | ||
| ImageLaterality = 'R'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: true, vFlip: false }); | ||
| }); | ||
|
|
||
| test("should return { hFlip: true, vFlip: false } if ImageOrientationPatient is not present, PatientOrientation is ['A', 'FL'] and ImageLaterality is R", () => { | ||
| const PatientOrientation = ['A', 'FL'], | ||
| ImageLaterality = 'R'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: true, vFlip: false }); | ||
| }); | ||
|
|
||
| test("should return { hFlip: true, vFlip: false } if ImageOrientationPatient ans ImageLaterality is not present, PatientOrientation is ['P', 'FL'] and FrameLaterality is L", () => { | ||
| const PatientOrientation = ['P', 'FL'], | ||
| FrameLaterality = 'L'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| FrameLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({ hFlip: true, vFlip: false }); | ||
| }); | ||
|
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||
| test("should return empty object if ImageOrientationPatient is not present, PatientOrientation is ['H', 'R'] and ImageLaterality is R since the orientation is rotated, not flipped", () => { | ||
| const PatientOrientation = ['H', 'R'], | ||
| ImageLaterality = 'R'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({}); | ||
| }); | ||
|
|
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| test("should return empty object if ImageOrientationPatient is not present, PatientOrientation is ['F', 'L'] and ImageLaterality is L since the orientation is rotated, not flipped", () => { | ||
| const PatientOrientation = ['F', 'L'], | ||
| ImageLaterality = 'L'; | ||
| const flipsNeeded = getImageFlips({ | ||
| PatientOrientation, | ||
| ImageLaterality, | ||
| }); | ||
| expect(flipsNeeded).toEqual({}); | ||
| }); | ||
| }); |
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