Title :
A new approach for fMRI acquisition
Author :
Twieg, Donald B.
Author_Institution :
Dept. of Biomed. Eng., Alabama Univ., Birmingham, AL, USA
Abstract :
Single-shot MRI methods (e.g., echo-planar imaging) favored for functional MRI suffer from geometric off-resonance errors and dropout in areas with tissue susceptibility gradients. A new method for single-shot MRI is presented which is free of off-resonance geometric errors, tolerates larger susceptibility gradients, and directly maps relaxation and frequency. Initial simulation and experimental results are presented.
Keywords :
biological tissues; biomedical MRI; data acquisition; errors; magnetic relaxation; magnetic susceptibility; fMRI acquisition approach; functional magnetic resonance imaging; medical diagnostic imaging; off-resonance geometric errors; relaxation mapping; single-shot MRI; susceptibility gradients tolerance; Biomedical engineering; Biomedical imaging; Biomedical monitoring; Density measurement; Encoding; Frequency; Instruments; Magnetic resonance imaging; Phase measurement; Spatial resolution;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106239
