Title :
A spatiotemporal finite element mesh model of cyclical deforming motion and its application in myocardial motion analysis using phase contrast MR images
Author :
Zhu, Yudong ; Pelc, Norbert J.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
Presents a method for nonrigid cyclic motion analysis using a series of velocity images, acquired for example, from phase contrast magnetic resonance imaging. The method is based on fitting a global spatiotemporal finite element mesh model, which has controllable builtin spatial/temporal smoothing that is determined by the finesse of the initially defined mesh and richness of included Fourier harmonics, to velocity samples of an extended region at all time frames. If desired, the method can further provide a prediction of the analysis reproducibility along with the estimated motion and deformation quantities. Experiments have been conducted to validate the method and verify the reproducibility prediction
Keywords :
biomechanics; biomedical NMR; cardiology; finite element analysis; medical image processing; motion estimation; muscle; physiological models; Fourier harmonics; analysis reproducibility; cyclical deforming motion; global spatiotemporal finite element mesh model; included Fourier harmonics; magnetic resonance imaging; medical diagnostic imaging; myocardial motion analysis; phase contrast MR images; reproducibility prediction; velocity samples; Capacitive sensors; Deformable models; Finite element methods; Magnetic resonance imaging; Motion analysis; Motion estimation; Myocardium; Predictive models; Reproducibility of results; Smoothing methods; Solid modeling; Spatiotemporal phenomena; Velocity control;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.638687
