Using polyethylene tubes to simulate the intracranial arteries, the HU count was measured on noncontrast CT, from which the amount of erythrocytes and platelets within the thrombus was determined.

• 使用聚乙烯管模拟颅内动脉，用增强CT测定其HU值，可以判断血栓内的红细胞及血小板的数量。