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Abstract #5175

EPI Distortion Correction using FSL TOPUP for Diffusion Tensor Imaging of the Human Heart

Gang Yin1, Peng Sun2, Zhigang Wu2, Zhixiang Dong1, Leyi Zhu1, Weipeng Yan1, Lele Liu1, Xiaoxiao Zhang2, Liangjie Lin2, Jiazheng Wang2, Shihua Zhao1, and Minjie Lu1
1Fuwai Hospital, Beijing, China, 2Philips Healthcare, Beijing, China

Synopsis

Motivation: Cardiac diffusion tensor imaging (cDTI) enables the characterization of the myocardial microstructural environment. However, B0 inhomogeneity around the heart can lead to EPI distortion and signal loss in cDTI.

Goal(s): To investigate the feasibility of using FSL TOPUP for EPI Distortion Correction in cDTI.

Approach: This proposed approach could be seamlessly integrated into cDTI postprocessing, significantly improving the accuracy and reproducibility of cDTI, particularly when researchers are analyzing metrics alongside other cardiac image parameters.

Results: The FSL TOPUP method could correct EPI distortion in both diffusion-weighted images (b0 and b400), following which kinds of cDTI metrics are reconstructed successfully after the correction.

Impact: The FSL TOPUP algorithm has been successfully integrated into the cDTI postprocessing in order to correct EPI distortion effectively.

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Keywords