根據行政院衛生署近期研究報告顯示，台灣地區腦血管疾病皆高居十大死因之第二位，其中又以動脈瘤破裂致死占大多數。其中血液動力因子普遍被認為與顱內動脈瘤之形成與破裂有關，然而部分重要的血液動力特性卻難以經由活體量測獲得，且一般動脈瘤模型很少根據母管角度變化進行探討。因此本文旨在以數值模擬探討動脈瘤在穩態及脈動瘤之不同入口條件，探討動脈瘤內流場、壁面剪應力及流量比的影響。計算上，脈動波形脈動流場參數中沃門斯里數(Womersley Number)為4.0，雷諾數變化範圍200~400。模擬結果顯示，加裝支架前，顯示出隨著母管角度增加，動脈瘤內流速、流入動脈瘤內體積流量及壁面剪應力有明顯增加的趨勢；加裝支架後，動脈瘤內流速、流入動脈瘤內體積流量及壁面剪應力有明顯減少的趨勢。

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