N-Dimensional Presentation State Use Cases Toshiba
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Transcript N-Dimensional Presentation State Use Cases Toshiba
DICOM
nD Presentation State
Toshiba Cross-Sectional Imaging
Use Cases
Updated 15 Feb, 2011
Modalities Considered
CT
MR
PET
4/13/2015
nD Presentation State Use Cases
2
Clinical Specialties Considered
Radiology
Cardiology
Gastroenterology
4/13/2015
nD Presentation State Use Cases
3
CT Coronary Artery Stenosis
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
Three MPRs aligned with the axes of the heart intersecting at the point of stenosis
Curved MPR following the centreline of the stenotic vessel with stenosis marked
Cross-curved MPR at the point of stenosis with % stenosis measurement
SVR and / or volumetric MIP, oriented to show stenosis
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Position of cross-curved MPR
Orientation and VOI for SVR / MIP
W/L for MPR and MIP views
Opacity for SVR views – accuracy of colour mapping unimportant
4/13/2015
nD Presentation State Use Cases
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CT Coronary Artery Plaque Evaluation
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
Slab MPR aligned with the affected vessel
3-4 MPR views perpendicular to the above view demonstrating the extent of the plaque
Curved MPR following the centreline of the affected vessel
Set of cross-curved MPRs with colour-coded plaque burden
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Width and Intensity Projection of MPRs
Position of cross-curved MPRs
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
5
CT Coronary Artery Stent Evaluation
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
MPR aligned with the affected vessel
3-4 MPR views perpendicular to the above along the length of the stent
Curved MPR following the centreline of the affected vessel
Set of cross-curved MPRs along the length of the stent
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Position of cross-curved MPRs
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
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CT Coronary Artery Aneurysm Evaluation
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
Curved MPR following the centreline of the affected vessel
Cross-curved MPR at end-points of aneurysm and point of maximal diameter with measurements
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Position of cross-curved MPRs
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
7
CT Coronary Artery Anomalous Vessel Evaluation
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
Three MPRs intersecting at the vessel origin
Slab MPR demonstrating the vessel anomaly
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Width and Intensity Projection of MPRs
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
8
CT Coronary Artery CABG Evaluation
Input is a gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Heart / myocardium
Coronary arteries
Automated / semi-automated coronary artery centreline finding
Views saved:
Curved MPR following the centreline of the bypass graft
SVR views oriented to show junction of bypass graft and coronary artery with different VOIs (survey and focused on junction)
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Orientation and VOI for SVR / MIP
W/L for MPR views
Opacity for SVR views – accuracy of colour mapping unimportant
4/13/2015
nD Presentation State Use Cases
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CT Cardiac 4D Valve Evaluation
Input is a retrospectively gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Left ventricle endocardium
Left ventricle epicardium
Views saved:
Three MPRs aligned with the axes of the heart intersecting at the aortic valve cycling through cardiac phases
SVR view oriented to show the aortic valve cycling through cardiac phases
Three MPRs aligned with the axes of the heart intersecting at the mitral valve cycling through cardiac phases
SVR view oriented to show the mitral valve cycling through cardiac phases
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Position and orientation of MPRs
Cine details?
Orientation and VOI for SVR
W/L for MPR views
Colour / opacity guideline – accuracy of colour and opacity mapping unimportant
4/13/2015
nD Presentation State Use Cases
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CT Cardiac 4D Myocardial Contractility
Input is a retrospectively gated, contrast-enhanced CT cardiac exam
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Left ventricle endocardium
Left ventricle epicardium
Views saved:
Three MPRs aligned with the axes of the heart intersecting at the left ventricle cycling through cardiac phases
SVR view oriented to show the left ventricle valve cycling through cardiac phases
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Position and orientation of MPRs
Orientation and VOI for SVR
W/L for MPR views
Colour / opacity guideline – accuracy of colour and opacity mapping unimportant
4/13/2015
nD Presentation State Use Cases
11
CT Calcium Scoring
Input is a retrospectively gated, non-enhanced CT cardiac phase
Device/user creating derived views and presentation states
CT technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Coronary artery calcification
Output saved:
Assignment of calcification to coronary arteries
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Assignment of calcification to coronary arteries
Use case may be more appropriate to a CAD-like object than to an nD PS
4/13/2015
nD Presentation State Use Cases
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CT Colonography
Input is a combination of prone, supine and decubitus CT volumes, with or without contrast
Device/user creating derived views and presentation states
CT technologist, radiologist or gastroenterologist using post-processing application
Automated / semi-automated segmentation of:
Luminal surface of colon
Colonic centerline
Air in small intestine
Polyps/flat lesions
Contrast tagged stool
Residual fluid
Views saved:
SVR of air in colon
MPR/slab views to illustrate individual lesions
Endoscopic (SVR/SSD) of colon
Dissected SVR view
Device/user using presentation state to replicate derived views
Radiologist / gastroenterologist performing primary read after tech workup
Radiologist / gastroenterologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Position and orientation of MPRs
Orientation and VOI for SVR
W/L for MPR views
Opacity /threshold for SVR/SSD views – accuracy of colour mapping unimportant
4/13/2015
nD Presentation State Use Cases
13
CT Angiography
Input is a contrast-enhanced CT angiography exam
Device/user creating derived views and presentation states
CT technologist or radiologist using post-processing application
Automated / semi-automated segmentation of:
Arteries to be analyzed
Bone adjacent to arteries of interest
Automated / semi-automated artery centreline finding
Views saved:
Three MPRs aligned with the artery intersecting at the point of stenosis
Curved MPR following the centreline of the stenotic vessel with stenosis marked
Cross-curved MPR at the point of stenosis with % stenosis measurement
SVR and / or boneless volumetric MIP, oriented to show stenosis
Device/user using presentation state to replicate derived views
Radiologist performing primary read after tech workup
Radiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Centrelines
Markers / measurements
Position and orientation of MPRs
Position of cross-curved MPR
Orientation and VOI for SVR / MIP
W/L for MPR and MIP views
Opacity for SVR views – accuracy of colour mapping unimportant
4/13/2015
nD Presentation State Use Cases
14
MR Cardiac LV Analysis
Input is a gated, contrast-enhanced MR cardiac exam
Device/user creating derived views and presentation states
MR technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Left ventricle endocardium
Left ventricle epicardium
Views saved:
Set of LV short axis views with overlaid segmentation
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
15
MR Cardiac Perfusion
Input is a contrast-enhanced MR cardiac perfusion exam
Device/user creating derived views and presentation states
MR technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated segmentation of:
Left ventricle endocardium
Left ventricle epicardium
Views saved:
Set of LV short axis views with functional overlays – stress and rest acquisitions
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
W/L for MPR views
4/13/2015
nD Presentation State Use Cases
16
MR Cardiac Delayed Enhancement
Input is a delayed-enhancement MR cardiac exam
Device/user creating derived views and presentation states
MR technologist, radiologist or cardiologist using post-processing application
Automated / semi-automated determination of infarct enhancement threshold
Automated / semi-automated segmentation of infarct
Views saved:
Cross-sectional view highlighting infarct with overlays and measurements
Device/user using presentation state to replicate derived views
Radiologist / cardiologist performing primary read after tech workup
Radiologist / cardiologist reviewing priors alongside follow-up exams
Need to reproduce:
Segmentation
Signal intensity threshold used to perform infarct segmentation
4/13/2015
nD Presentation State Use Cases
17
PET / CT Fusion – Added 15 Feb
Input is a set of registered PET /CT exams, typically from a combined PET / CT scanner. A set of prior exams may also be loaded.
Device/user creating derived views and presentation states
Technologist or radiologist using post-processing application
If views are not already registered, registration is performed
Views saved:
Blended CT / PET MIP views demonstrating areas of interest with measurement overlays (point measurements or ROIs)
3D MIP view with an inverted W/L
Device/user using presentation state to replicate derived views
Radiologist performing primary read after tech workup
Radiologist reviewing priors alongside follow-up exams
Need to reproduce:
MPR positions
Blending function
W/L and or color maps
Measurement position and ROI details
4/13/2015
nD Presentation State Use Cases
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