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Objective To evaluate the diagnostic performance of the combination of arterial spin labeling (ASL) and time of flight MR angiography (TOF MRA) for intracranial arteriovenous shunt (AVS) detection. Methods A total of 39 patients with known or suspected with cerebrovascular malformations underwent digital subtraction angiography (DSA) and ASL/TOF MRA imaging in Department of neurosurgery and radiology and nuclear medicine, Xuanwu Hospital from May 1, 2020 to October 31, 2020 were retrospectively analyzed. Patients were divided into eith