中华神经外科杂志
中華神經外科雜誌
중화신경외과잡지
Chinese Journal of Neurosurgery
2012年
3期
256-259
,共4页
李良%张莹%陈家亮%王盛章%李海云%于红玉%汪阳%李传辉%杨新健
李良%張瑩%陳傢亮%王盛章%李海雲%于紅玉%汪暘%李傳輝%楊新健
리량%장형%진가량%왕성장%리해운%우홍옥%왕양%리전휘%양신건
颅内动脉瘤%侧方动脉瘤%血流动力学%计算流体力学%直径大小
顱內動脈瘤%側方動脈瘤%血流動力學%計算流體力學%直徑大小
로내동맥류%측방동맥류%혈류동역학%계산류체역학%직경대소
Intracranial aneurysms%Lateral type%Hemodynamics%Computational fluid dynamics%Size
目的 探讨直径大小对未破裂颈内动脉侧方动脉瘤的血流动力学影响.方法 对小中大三型未破裂颈内动脉侧方动脉瘤进行三维建模及计算流体力学模拟分析,分析其瘤内的血流动力学参数并进行比较.结果 小中大三型动脉瘤的血流均符合侧方动脉瘤的流动模式.小中大三型进行对比时发现动脉瘤越大,其内部涡流就越复杂.且小中大三型动脉瘤的壁面切应力( WSS)值顺序减小而切应力震荡因子( OSI)的值顺序增大.结论 未破裂动脉瘤随直径增大所具有的紊乱的涡流和低WSS高OSI可能跟其破裂风险增大有关.
目的 探討直徑大小對未破裂頸內動脈側方動脈瘤的血流動力學影響.方法 對小中大三型未破裂頸內動脈側方動脈瘤進行三維建模及計算流體力學模擬分析,分析其瘤內的血流動力學參數併進行比較.結果 小中大三型動脈瘤的血流均符閤側方動脈瘤的流動模式.小中大三型進行對比時髮現動脈瘤越大,其內部渦流就越複雜.且小中大三型動脈瘤的壁麵切應力( WSS)值順序減小而切應力震盪因子( OSI)的值順序增大.結論 未破裂動脈瘤隨直徑增大所具有的紊亂的渦流和低WSS高OSI可能跟其破裂風險增大有關.
목적 탐토직경대소대미파렬경내동맥측방동맥류적혈류동역학영향.방법 대소중대삼형미파렬경내동맥측방동맥류진행삼유건모급계산류체역학모의분석,분석기류내적혈류동역학삼수병진행비교.결과 소중대삼형동맥류적혈류균부합측방동맥류적류동모식.소중대삼형진행대비시발현동맥류월대,기내부와류취월복잡.차소중대삼형동맥류적벽면절응력( WSS)치순서감소이절응력진탕인자( OSI)적치순서증대.결론 미파렬동맥류수직경증대소구유적문란적와류화저WSS고OSI가능근기파렬풍험증대유관.
Objective To explore and compare the hemodynamic factors in small,medium and large unruptured lateral intracranial saccular aneurysms at the Internal Carotid Artery.Method 27 patient -specific unruptured lateral intracranial saccular aneurysms at the Internal Carotid Artery were divided into small,medium and large groups based on their diameters.Results models were retrospectively constructed and analyzed by computational fluid dynamic(CFD) method.Results All these three groups displayed typical lateral aneurismal flow patterns.Larger - sized group displayed more unstable flow patterns,significantly lower wall shear stress(WSS) and higher oscillatory shear index( OSI ).Conclusions These observations indicated that more unstable flow patterns,lower WSS and higher OSI in the aneurysms might be involved in increasing the risk of rupture for larger - sized unruptured lateral intracranial saccular aneurysms.
