The Thrombolysis in Cerebral Infarction (TICI) grading system is used to describe flow in the intracranial cerebral circulation.

References
Higashida RT, Furlan AJ. Trial Design and Reporting Standards for Intra-Arterial Cerebral Thrombolysis for Acute Ischemic Stroke. Stroke. 2003;34;e109-e137.
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