Meeting Banner
Abstract #3835

Quantitative Susceptibility Mapping Using 2D Simultaneous Multi-slice Gradient-echo Imaging at 7T

Wei Bian1, Adam Bruce Kerr2, Kongrong Zhu2, Paymon Rezaii1, Maged Goubran1, Christopher Lock3, May Han3, Yi Wang4, Zhe Liu4, Sherveen Parivash1, Brian Rutt1, and Michael Zeineh1

1Department of Radiology, Stanford University, Stanford, CA, United States, 2Department of Electrical Engineering, Stanford University, Stanford, CA, United States, 3Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, United States, 4Department of Radiology, Weill Cornell Medical College, New York, NY

A 2D multi-echo simultaneous multi-slice (SMS) gradient-echo imaging sequence was implemented for simultaneous anatomical imaging, R2* mapping and quantitative susceptibility mapping (QSM). Imaging acceleration in the slice direction speeds up the sequence to clinical scan times while using a longer TR and larger flip angle compared to 3D imaging. Evaluation from both healthy and multiple sclerosis subjects showed that, using the same acquisition time and imaging resolution as a 3D sequence, the proposed sequence improved tissue susceptibility contrast, suggesting 2D SMS GRE imaging may be a viable alternative for clinical applications of susceptibility-based imaging.

This abstract and the presentation materials are available to members only; a login is required.

Join Here