ENHANCED DETECTION IN BRAIN ACTIVATION MAPS USING A MULTIFILTERING APPROACH

被引：53

作者：

POLINE, JB

MAZOYER, BM

机构：

[1] CEA, DRIPP, SERV HOSP FREDERIC JOLIOT, IMAGERIE NEUROFONCTIONNELLE GRP, F-91406 ORSAY, FRANCE

[2] UNIV PARIS, CHU BICHAT, F-75252 PARIS, FRANCE

来源：

JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM | 1994年 / 14卷 / 04期

关键词：

POSITRON EMISSION TOMOGRAPHY; BRAIN ACTIVATION; MULTIFILTERING; DETECTION SENSITIVITY;

D O I：

10.1038/jcbfm.1994.79

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Current methods for detecting activation foci in positron emission tomography difference images include a low pass filtering step aimed at improving the signal-to-noise ratio. However, we show that detection sensitivity depends both on the activation signal and the filter sizes. Therefore, we propose to improve current detection methods by using a multifiltering strategy that is shown to be more sensitive when various kinds of signals are present in the brain activation images.

引用

页码：639 / 642

页数：4