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Posterior Communicating Artery・Posterior Cerebral Artery Wataro TSURUTA 1 1Department of Endovascular Neurosurgery, Toranomon Hospital Keyword: 後交通動脈 , 後大脳動脈 , 穿通枝 , 閉塞試験 , posterior communicating artery , posterior cerebral artery , perforator , occlusion test pp.522-530
Published Date 2024/5/10
DOI https://doi.org/10.11477/mf.1436204945
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 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.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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