Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-05-14
2010-10-12
Tucker, Wes (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S173000, C382S108000, C382S112000, C382S141000, C382S152000, C348S091000, C348S092000, C348S125000, C348S133000, C356S237100, C356S394000, C356S398000, C600S413000, C600S410000, C600S407000
Reexamination Certificate
active
07813537
ABSTRACT:
Myocardial tissue tracking techniques are used to project or guide a single manually-defined set of myocardial contours through time. Displacement encoding with stimulated echoes (DENSE), harmonic phase (HARP) and speckle tracking is used to encode tissue displacement into the phase of complex MRI images, providing a time series of these images, and facilitating the non-invasive study of myocardial kinematics. Epicardial and endocardial contours need to be defined at each frame on cine DENSE images for the quantification of regional displacement and strain as a function of time. The disclosed method presents a novel and effective two dimensional semi-automated segmentation technique that uses the encoded motion to project a manually defined region of interest through time. Contours can then easily be extracted for each cardiac phase.
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Peterfreund, N.
Epstein Frederick H
Meintjes Ernesta M
Spottiswoode Bruce S
Bitar Nancy
Paschburg Donald B.
Siemens Medical Solutions USA , Inc.
Tucker Wes
University of Cape Town
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