Meeting Banner
Abstract #0615

Fast 2D Imaging for Distortion Correction Near Metal Implants

Brian A Hargreaves 1 , Valentina Taviani 1 , and Daehyun Yoon 2

1 Radiology, Stanford University, Stanford, CA, United States, 2 Radiology, Stanford University, Stanford, California, United States

Multi-spectral imaging (MSI) methods such as SEMAC, MAVRIC, and MAVRIC-SL, offer excellent metal artifact reduction. Variants of these methods all use 3D imaging, limiting both minimum scan time and flexibility. Here we present an approach using 2D imaging of limited volumes, produced by flipping the selection gradient sign between excitation and refocusing pulses. The volumes are combined directly, avoiding the need for z phase encoding and view-angle tilting. Artifact correction is comparable to MSI methods, though at an SNR penalty. Advantages include fast imaging of a small number of slices, and easy localization of off-resonance signal to improve scan efficiency.

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

Join Here