A MODEL-BASED 4-DIMENSIONAL LEFT-VENTRICULAR SURFACE DETECTOR

被引：55

作者：

FABER, TL ^{[1
]}

STOKELY, EM ^{[1
]}

PESHOCK, RM ^{[1
]}

CORBETT, JR ^{[1
]}

机构：

[1] UNIV ALABAMA,DEPT BIOMED ENGN,BIRMINGHAM,AL 35294

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 1991年 / 10卷 / 03期

关键词：

D O I：

10.1109/42.97581

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We have developed a general model-based surface detector for finding the four-dimensional (three spatial dimensions plus time) endocardial and epicardial left ventricular boundaries. The model encoded LV shape, smoothness, and connectivity into the compatibility coefficients of a relaxation labeling algorithm. This surface detection method was applied to gated SPECT perfusion images, tomographic radionuclide ventriculograms, and cardiac rotation magnetic resonance images. Its accuracy was investigated using actual patient data. Global left ventricular volumes correlated well, with a maximum correlation coefficient of 0.98 for MR endocardial surfaces and a minimum of 0.88 for SPECT epicardial surfaces. The average absolute errors of edge detection were 6.4, 5.6, and 4.6 mm for tomographic radionuclide ventriculograms, gated perfusion SPECT, and magnetic resonance images, respectively.

引用

页码：321 / 329

页数：9

共 21 条

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Ballard DH, 1982, COMPUTER VISION, P408

[2]

BRINKLEY JF, 1985, IEEE T JPATTERN ANAL, V4, P431

[3] KNOWLEDGE DIRECTED LEFT-VENTRICULAR BOUNDARY DETECTION IN EQUILIBRIUM RADIONUCLIDE ANGIOCARDIOGRAPHY [J].