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大腦動脈環後交通動脈的形態觀察 MORPHOMETRIC STUDY OF THE POSTERIOR COMMUNICATING ARTERY IN CEREBRAL ARTERIAL CIRCLE OF WILLIS

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大腦動脈環後交通動脈的形態觀察

MORPHOMETRIC STUDY OF THE POSTERIOR COMMUNICATING ARTERY IN CEREBRAL ARTERIAL

CIRCLE OF WILLIS

崔岡

摘要

目的 觀察大腦動脈環后交通動脈的形態變異。 方法 取 50 例經福爾馬林處 理的臺灣地區成年男性大腦,用光學攝像系統攝取后交通動脈影像,沖映成照片 后,再經掃描儀存入計算機并放大至 20 倍,用打印機映出影像后測量并統計外 徑值。 結果 左側后交通動脈近頸內動脈端外徑為 1.72±0.77(0.7~4.3) mm,

右側則為 1.69±0.78(0.8~3.3) mm。左側后交通動脈近大腦后動脈端外徑為 1.59±

0.58(0.8~3.0) mm,右側則為 1.59±0.68(0.5~3.2) mm。 結論 臺灣地區測量值 與大陸地區測量值有差異,是由于兩地采用的測量方法不同造成的。

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