TARGET APEX-SEEKING IN FACTOR-ANALYSIS OF MEDICAL IMAGE SEQUENCES

被引:57
作者
BUVAT, I
BENALI, H
FROUIN, F
BAZIN, JP
DIPAOLA, R
机构
[1] Inst. Gustave Roussy, Villejuif
关键词
D O I
10.1088/0031-9155/38/1/009
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The aim of factor analysis of medical image sequences (FAMIS) is to estimate a limited number of physical or physiological fundamental functions. Its oblique rotation stage strongly affects the quality and the interpretation of the resulting estimates (factors and factor images). A new target apex-seeking method which integrates physical or physiological knowledge in this stage is described. This knowledge concerns some of the fundamental functions and reacts on the determination of all the factors. A simulated spectral study illustrates the method. We discuss its properties in comparison with the other approaches using a priori physical or physiological information.
引用
收藏
页码:123 / 138
页数:16
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