Cerebral infarction angiography is performed to prepare for interventional thrombolysis and to check for revascularization after thrombolysis. The full name of cerebral infarction angiography is computerized digital subtraction cerebral arteriography. It is applicable to acute cerebral infarction, and is mainly applicable to the emergency treatment of acute cerebral infarction in the middle cerebral artery within 6 hours of the occurrence of cerebral infarction, which can be treated with transvascular interventional arterial thrombolytic therapy to achieve the therapeutic effect of recanalization of infarcted blood vessels. The procedure generally involves selecting the femoral artery for puncture, then introducing an angiographic catheter into the femoral artery through the puncture point and entering the catheter into the proximal end of the infarcted artery along the vascularization under angiographic visualization, removing the embolus so that the cerebral artery undergoes recanalization, and treating the cerebral infarction. It is necessary to follow the assessment of a specialized physician for examination and treatment.