Scan Time Reduction in 3D-EPSI Using Reduced Phase-Encoding

Juan Wei¹, Peter B. Barker¹

A simple technique is described for scan time reduction in proton echo planar spectroscopic imaging (EPSI) of the human brain. Scan time is reduced by 25% while preserving spatial resolution and the field of view using a circular k-space phase-encoding pattern. Metabolic images created using square or circular-encoding are nearly indistinguishable.