Meeting Banner
Abstract #1880

Combined RS-EPI and SAP-EPI for High Resolution Diffusion-Weighted Imaging

Murat Aksoy1, Samantha J. Holdsworth1, Rafael O'Halloran1, Roland Bammer1

1Center for Quantitative Neuroimaging, Department of Radiology, Stanford University, Stanford, CA, United States

We propose a novel high resolution diffusion-weighted imaging sequence that combines readout-segmented (RS)-EPI and short-axis propeller (SAP)-EPI readouts. The RS-EPI image provides a high resolution diffusion-weighted image, whereas the SAP-EPI readout acts as a navigator for both the RS-EPI and SAP-EPI readout and is also used to form a second diffusion weighted image with a higher T2-weighting and thus additional diffusion-weighted contrast.

Keywords

acquisition acquisitions additional advanced axis blade blades blind blinds blurring body channel characteristics clinical coil column combination combined common comparatively complementary contrast correct corrected correction diffusion disadvantage discarded discovery distortion efficiency encoding errors extent form foundation gives gradient gray greater hampers head human identical improvements isotropic lesions longer middle navigator offer parallel part partial penalty performance pipe porter portion preliminary preparation propeller propose proposed quality quantitative radiology radius readout reconstruction reduce reduced reducing referred required requires resolution retrospective rotated rotating segmented segments sensitivity separate separately setting several share sharper short slice space successfully supported system tanner technology traversed triangular typically unidirectional unit useful volunteer white whole width windowing