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Abstract #0151

Investigation of zero TE ASL MRA in the follow-up after endovascular treatment of intracranial aneurysm at 1.5T

yan song 1, Peng Qi, Juan Huang, Sheng Jiao, Tan Guo, Min Chen, Daming Wang, Jing Zhang, Bing Wu, and Zhe lin Luo

1Beijing Hospital, Beijing, People's Republic of China

It is necessary to follow up the intracranial aneurysms treated with coil or/and stent for recanalization or remnant. TOF MRA, though performed well, is susceptible to metallic artifact and flow artifact. ASL MRA with zero TE acquisition has potential advantages. The purpose of this study was to evaluate the performance of ASL MRA by comparing with TOF MRA, using DSA as gold standard. It was demonstrated that ASL MRA featured significantly better consistency with DSA for aneurysm remnant diagnosis and led to superior image quality in the presence of intra-stent lumen as compared to TOF at 1.5T.

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