Meeting Banner
Abstract #4744

Metallic Artifact Suppression in DWI Using Efficient 2D Imaging

Sisi Li1, Yishi Wang2, Yajing Zhang3, and Hua Guo1
1Center for Biomedical Imaging Research, Tsinghua University, Beijing, China, 2Philips Healthcare, Beijing, China, 3MR Clinical Science, Philips Healthcare, Suzhou, China


Diffusion-weighted imaging (DWI) near metal remains a technical challenge although several 3D multispectral imaging methods have achieved effective metallic artifacts correction in anatomical MRI. Additionally, considering scan time and scan flexibility, 2D multi-slice acquisition approaches are typically used in DWI. In this study, we adopted 2D Point-Spread-Function Encoded EPI to generate a series of echo-shifted in-plane distortion-corrected images and introduced an off-resonance frequency-informed reconstruction framework to further reduce metallic artifacts in DWI by through-slice signal registration. The efficacy of this method was validated in phantom experiments, in-vivo brain DTI and spinal cord DWI.

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

Join Here