Abstract #1251

Multicontrast Distortion-free MRI Using PSF-EPI

Yishi Wang^1,2, Zijing Dong¹, Zhangxuan Hu¹, Xuesong Li³, Fuyixue Wang^4,5, Kawin Setsompop^4,5, Ziyi Pan¹, Chun Yuan^1,6, and Hua Guo¹

¹Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, ²Philips Healthcare, Beijing, China, ³School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China, ⁴A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States, ⁵Harvard-MIT Health Sciences and Technology, MIT, Cambridge, MA, United States, ⁶Vascular Imaging Laboratory, Department of Radiology, University of Washington, Seattle, WA, United States

Fast multimodal exams are required in many situations such as acute ischemic stroke and brain trauma. Recently a multicontrast full brain protocol was proposed based on single shot echo-planar imaging (SS-EPI). However, the SS-EPI images suffer from distortion artifacts. In this work, we provide a speedy multi-contrast distortion-free imaging protocol including T2w, DWI, T2*w, T1 FLAIR and T2 FLAIR based on point spread function encoded echo-planar imaging (PSF-EPI).

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