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Abstract #1075

Clinical Evaluation of PETRA-MR Angiography in comparison with 3D-TOF-MRA for improved flow dephasing at 3 Tesla

Qing Fu1, Xiao-yong Zhang2, and Ding-xi Liu1
1Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China, 2MR Collaborations, Siemens Healthcare Ltd., Shenzhen, China

This study aimed to demonstrate the image quality and diagnostic performance of subtraction-based pointwise encoding time reduction with radial acquisition (PETRA-MRA) for improved flow dephasing in the intracranial internal carotid artery (ICA) when compared with conventional 3D-TOF-MRA. Our findings showed that image quality and signal homogeneity within the ICA in PETRA-MRA were significantly better than those obtained with TOF-MRA. In conclusion, PETRA-MRA proved to be superior for depicting less flow dephasing artifacts and better image quality in comparison with 3D-TOF-MRA.

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