Constrained nonlinear estimation of fMRI hemodynamic response parameters

被引：0
|
作者：
Shi, Pengcheng [1 ]
Hu, Zhenghui [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Med Image Comp Grp, Hong Kong, Hong Kong, Peoples R China
来源：
2007 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-7 | 2007年
关键词：
hemodynamic response; controlled random search; optimization;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a constrained nonlinear optimization approach to the estimation of hemodynamic response (HR) shape from fMRI images. The controlled random search (CRS) based strategy limits the HR parameters within a physically/physiologically plausible phase space, and thus may produce more meaningful results than the traditional unconstrained methods. Block-design and event-related fMRI experiments have been conducted to examine the validity of the framework.
引用
收藏
页码：2749 / 2752
页数：4
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