Abstract #3024

Multi-shot Cartesian TSE DWI with Inherent 2D Phase Correction

Zhe Zhang¹, Xiaodong Ma¹, Bing Zhang², Ming Li², Chun Yuan^1,3, and Hua Guo¹

¹Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, People's Republic of, ²Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China, People's Republic of, ³Vascular Imaging Laboratory, Department of Radiology, University of Washington, Seattle, WA, United States

Single-shot EPI DWI suffers from geometric distortion which can mask the pathology. Single-shot TSE DWI can help settle the distortion problems, but the spatial resolution is limited. In this work, a multi-shot Cartesian TSE DWI method with improved in-plane resolution is proposed. The ghost artifacts from shot-to-shot phase variations are corrected using an image domain correction method. The results show that the proposed method provides diffusion images with improved resolution and insensitivity to susceptibility induced distortion artifacts.

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