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Abstract #3575

Imaging of Saccular Intracranial Aneurysms with T1W-VISTA Black-Blood Sequence

Haikun Qi 1 , Peng Liu 2 , Hansen Li 1 , and Huijun Chen 1

1 Department of Biomedical Engineeing, School of Medicine, Tsinghua University, Beijing, Beijing, China, 2 Department of Neurosurgical, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Beijing, China

Saccular intracranial aneurysm (IA) rupture risk prediction is critical in the IA treatment decision-making process. 3D High resolution MR black blood vessel wall imaging has great potential for IA risk stratification with the ability for both IA size measurement and aneurysm wall inflammation evaluation. In this study, the IA size measured by 3D black blood T1-VISTA images is validated by comparing with 3D CTA measurement and excellent agreement was found. The IA wall enhancement was evaluated based on pre- and post-contrast VISTA images, and prevalence of IA wall enhancement was reported.

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