Motion and Strain Analyses of Left Ventricular Wall Using Optical Flow
As for the cardiac muscle can be returned continuously has such complicated movement as contraction, expansion, rotation and twist as several decades, and it is very excellent in durability and functionally. So, you must analyze the movement of heart quantitatively in order to elucidation of cardiac function. Therefore, by this research, it pays attention to the left ventricle in which occupies major location as an intracorporeal sanguineous cyclicus pump function, which lasts for one heart period is taken as the imagines. And the movement of left ventricle has imaging in 2 images space to continue during the heart period, intensity modulation of pixel, visibility turns by Optical Flow calculation. Evaluation was tried like the dynamics of myocardial wall motion, about the transition in micro space, locus tracing, and principal strain were calculated. An analytic region divides short axis 3 cross section of heart in four area of anterior, lateral, posterior, and septal, which the lattice point of tagg in brightness grade were thought to be big about endcardium side and epdcardium side respective were connected with was counted in the whole area of triangular.
KeywordsOptical Flow Heart Period Left Ventricle Wall Complicated Movement Optical Flow Method
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