In this study, the main purpose was to explore the clinical value of territory arterial spin labeling （T-ASL） in assessing perfusion changes after unilateral middle cerebral artery （MCA）recanalization. We included 15 patients diagnosed by Digital Substraction Angiography（DSA） with unilateral MCA stenosis, T-ASL examination was performed before and after surgery. Patients showed significantly different reperfusion areas between pre- and post-operations, and some had hyperperfusion displacement in the major cerebral arterial blood supply area. Therefore, T-ASL technique can be used as a valuable method to evaluate the effect of vascular recanalization accurately.
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