Shuang Leng1, Shuo Zhang2, Xiaodan Zhao1, Baoru Leong1, Yiying Han1, Yasutomo Katsumata3, Stuart Cook1,4, Ru San Tan1,4, and Liang Zhong1,4
1National Heart Centre Singapore, Singapore, Singapore, 2Philips Healthcare Singapore, Singapore, Singapore, 3Philips Healthcare Japan, Tokyo, Japan, 4Duke-NUS Graduate Medical School Singapore, Singapore, Singapore
We have developed a
semi-automatic tracking system of atrioventricular junction (AVJ) deformation
with two-, three-, and four-chamber cardiovascular magnetic resonance (CMR) long-axis
images 1. In this study, we applied the feature-tracking technique in
18 radial rotational long-axis cine CMR planes and evaluated the motion of 36
evenly located AVJ points. Results have shown that 1) the obtained average AVJ
velocities (Sm, Em and Am) and maximal displacements are independent of the
number of AVJ points selected, and 2) the routinely acquired CMR imaging
generated in clinical practice are sufficient enough for dynamic assessment of
AVJ deformation.
