Meeting Banner
Abstract #0948

Single-Shot Fast Spin Echo of Targeted Regions with Variable Refocusing Flip Angles and Quadratic Phase Pulses for Outer Volume Suppression

Valentina Taviani 1 , Daniel Litwiller 2 , Andreas M. Loening 1 , Manojkumar Saranathan 1 , Brian A. Hargreaves 1 , and Shreyas S. Vasanawala 1

1 Radiology, Stanford University, Stanford, CA, United States, 2 GE Healthcare, Rochester, MN, United States

Reduced-FOV Single-Shot Fast Spin Echo (SSFSE) can provide high-resolution images of targeted regions free from motion artifacts and with improved sharpness due to the reduced echo train length. Outer volume suppression using quadratic phase pulses can be used to effectively restrict the phase-encoded FOV. The associated SAR penalty can be offset using variable refocusing flip angles. Although the large saturation bands needed for body applications cause misregistration artifacts between fat and water even for relatively high RF bandwidths, several novel approaches presented here can mitigate this effect. The performance of the proposed technique is illustrated in phantoms and specific clinical cases.

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

Join Here