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Abstract #1633

Bright Vessel Appearance on Arterial Spin Labeling MRI: Beyond Localizing Arterial Occlusion

Jinhao Lyu1, Xiangbing Bian1, Liuxian Wang1, Yina Lan1, Xin Zhou2, Lin Ma1, and Xin Lou1
1Department of Radiology, Chinese PLA General Hospital, Beijing, China, 2State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences‚ÄźWuhan National Laboratory for Optoelectronics, Wuhan, China

Bright vessel appearance on arterial spin labeling (ASL) had been reported to be a useful marker for localizing arterial occlusion in acute ischemic stroke. But ischemia due to cerebral arterial occlusion did not always show bright vessel appearance on ASL. In the present study, we found that the presence of bright vessel appearance may associate with thrombus age and be able to specifically identify acute cerebral arterial occlusion. The findings may help to optimize current stroke protocols and facilitate the diagnosis of fresh thrombus, thus to support the treatment decision making in stroke patients with large vessel occlusion.

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