Abstract: National audience ; Ischemic stroke is the most common type of stroke and is a major cause of death and disability worldwide. It occurs upon the obstruction of a cerebral artery by a blood clot, which causes the interruption of blood flow in the downstream brain territory. However, the reopening of the artery does not necessarily entail the restoration of complete reperfusion of the brain. CT or MRI perfusion imaging enable the assessment of brain perfusion but they cannot be used intra-operatively and are very seldom used for post-treatment follow-up due to clinical constraints. Means of a reliable and quantitative perfusion assessment would be a major asset if available during the intervention. The objective of this work is to generate brain perfusion maps based on intra-operative Digital Subtraction Angiography (DSA) image sequences.
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