Effect of Phase-Encoding Reduction on Geometric Distortion and BOLD Signal Changes in fMRI

Introduction Echo-planar imaging (EPI) is a group of fast data acquisition methods commonly used in fMRI studies. It acquires multiple image lines in k-space after a single excitation, which leads to a very short scan time. A well-known problem with EPI is that it is more sensitive to distortions du...

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Bibliographic Details
Main Authors: Golestan karami, Mohammad Ali Oghabian, Fariborz Faeghi, Mohammad Rasoul Tohidnia
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2013-03-01
Series:Iranian Journal of Medical Physics
Subjects:
Online Access:http://ijmp.mums.ac.ir/article_473_9c615fed20c59ff1d2bb6bc59b519005.pdf