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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