| Paper: | WA-P8.1 |
| Session: | Biomedical Imaging IV: Segmentation and Quantitative Analysis |
| Time: | Wednesday, September 19, 09:50 - 12:30 |
| Presentation: |
Poster
|
| Title: |
CONSTRAINED NONLINEAR ESTIMATION OF FMRI HEMODYNAMIC RESPONSE PARAMETERS |
| Authors: |
Shi Pengcheng; Hong Kong University of Science and Technology | | |
| | Hu Zhenghui; Hong Kong University of Science and Technology | | |
| Abstract: |
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. |
