[Quantitative functional evaluation on right ventricle with auto-segmentation and three-dimensional reconstruction].
The authors first segment the right ventricle regions from the echocardiographics by introducig a seeded region growth algorithm. Then they reconstrunct the three dimensional data field of right ventricle by using rotary scanning interpolation algorithm. And then, the authors propose a layer-by-layer, row-by-row, and voxel-by-voxel approach based on the interpolation results to estimate the volume of right ventricle. Finally, some right ventricle functional parameters such as EDV (End-diastolic volume), ESV (End-systolic volume), and RVEF (Right ventricular ejection fraction) are computed according to the volume results. The volume variation curves of several patients during a cardiac cycle have been successfully plotted out. The obtained results are compared with those from Tomtec medial image workstation. The comparison indicates the proposed approach is practical and meaningful.
Yang
Liu
L
School of Computer Science, Sichuan University, Chengdu 610065, China. yangliutww@gmail.com
Rao
Li
L
Zheng
Changqiong
C
Hu
Jie
J
Zhou
Jiliu
J
Peng
Minghao
M
D000465:Algorithms; D019560:Echocardiography, Three-Dimensional / Q000295:instrumentation / Q000379:methods; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging* / Q000503:physiopathology; D016278:Ventricular Function, Right