Abstract：
Thorough understanding of the vascular anatomy, including embryological development of vessels is important to safely perform endovascular procedures. The posterior cerebral and anterior choroidal arteries are embryologically complementary, which suggests a potential network. Numerous perforators originate from the posterior communicating and posterior cerebral arteries. The tuberothalamic artery arising from the posterior communicating artery and the thalamoperforating artery, which originates from the P1 segment of the posterior cerebral artery are clinically important because occlusion of these vessels can precipitate severe infarction. It is clinically important to be aware that the branching pattern of perforators differs based on the fusion type of the basilar tip. The balloon occlusion and Allcock test are useful to predict ischemic tolerance in cases of intentional artery occlusion. However, accurate prediction remains challenging, and a definitive evaluation method is unavailable. Flow disturbances in the cortical territory and local perforator impairment require close attention in cases of intentional artery occlusion.
摘要：
彻底了解血管解剖结构，包括血管的胚胎学发育对于安全地进行血管内手术是重要的。大脑后动脉和脉络膜前动脉在胚胎学上是互补的，这表明了一个潜在的网络。许多穿孔器起源于后交通和大脑后动脉。由后交通动脉和丘脑动脉形成的丘脑动脉，起源于大脑后动脉的P1段在临床上很重要，因为这些血管的闭塞会导致严重的梗塞。临床上重要的是要意识到穿孔器的分支模式根据基底尖端的融合类型而有所不同。在故意动脉闭塞的情况下，球囊闭塞和Allcock测试可用于预测缺血耐受性。然而,准确的预测仍然具有挑战性，并且没有确定的评估方法。在故意动脉闭塞的情况下，需要密切注意皮质区域的流量干扰和局部穿支损伤。
