Meeting Banner
Abstract #4694

Simultaneous Multi-slab DWI Reconstruction with Intrinsic Distortion Correction using Blip-up/down Acquisitions

Jieying Zhang1, Simin Liu1, Erpeng Dai2, Xinyu Ye1, Yang Yu3,4, Yajing Zhang5, Jie Lu3,4, and Hua Guo1
1Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, 2Department of Radiology, Stanford, CA, United States, 3Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China, 4Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, China, 5MR Clinical Science, Philips Healthcare, Suzhou, China


Simultaneous multi-slab imaging (SMSlab) can achieve high-resolution DWI with high SNR efficiency, but image distortions remain a problem. Joint reconstruction of blip-up/down EPI data can correct for distortion and reduce g-factors simultaneously. This study proposed a joint reconstruction framework with intrinsic distortion correction for SMSlab. Three sampling patterns were compared in terms of levels of distortions and g-factors. According to the results, a multi-shot acquisition should be used to reduce the distortion. Combined with the controlled aliasing in parallel imaging (CAIPI) sampling pattern, it can further reduce the g-factors.

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

Join Here