automatic 4d (3d+time) segmentation of cardiac mri
TRANSCRIPT
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Automatic 4D (3D+time) Segmentation of Cardiac MRI
CPCC & KLABUC IrvineAugust 2014
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Agenda
● Introduction● Current Work● Future work
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Introduction● LV and Myocardium
Segmentation
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Challenges in CMR Segmentation● Poor contrast between myocardium and surrounding● Diverse brightness in the LV cavity due to blood flow● Presence of papillary muscles ● Segmentation complexity of apical
and basal slice images ● Inherent noise caused by motion
artifacts, heart dynamics● Shape and intensity variability of the LV
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3D Automatic Segmentation
● Developed Algorithm
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Phase 0: Automatic Localization● Input: Raw Image Output: Chamber Location
Automatic Chamber Detection
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Phase I: 3D Segmentation of LV
3D Segmentation
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Phase II: Intra-Chamber Inclusion
Intra-Chamber Inclusion
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Phase III: Myocardial Segmentation
3D Segmentation
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Future Work: 4D (3D+time) Segmentation
Moving Heart