2017 Imaging for Physicists Coursebook

Echo Planar Imaging (EPI)

• Implemented by Peter Mansfield (1977) • Single-shot (can be run multi-shot)  Scan time = TR • Blipped, spiral and constant versions • Inherently noisy • Limited resolution (e.g. 64 or 128 matrix) • Can be SE or GRE based • Widespread use in fMRI & DWI