Hemodynamic analysis of intracranial aneurysms using phase-contrast magnetic resonance imaging and computational fluid dynamics

被引：3

作者：

Zhao, Xuemei ^{[1
]}

Li, Rui ^{[2
]}

Chen, Yu ^{[2
]}

Sia, Sheau Fung ^{[3
]}

Li, Donghai ^{[4
]}

Zhang, Yu ^{[4
]}

Liu, Aihua ^{[5
]}

机构：

[1] Tsinghua Univ, Beijing Huaxin Hosp, Affiliated Hosp 1, Beijing 100016, Peoples R China

[2] Tsinghua Univ, Dept Biomed Engn, Ctr Biomed Imaging Res, Sch Med, Beijing 100084, Peoples R China

[3] Univ Malaya, Div Neurosurg, Fac Med, Kuala Lumpur 50603, Malaysia

[4] Tsinghua Univ, Med Ctr, Beijing 100084, Peoples R China

[5] Capital Med Univ, Beijing Neurosurg Inst, Beijing Tiantan Hosp, Beijing 100050, Peoples R China

来源：

ACTA MECHANICA SINICA | 2017年 / 33卷 / 02期

关键词：

PCMRI; CFD; WSSD; OSI; Aneurysm rupture; WALL SHEAR-STRESS; CEREBRAL ANEURYSM; CAROTID BIFURCATION; NUMERICAL-ANALYSIS; FLOW; PATIENT; RUPTURE; MODEL; CFD; RISK;

D O I：

10.1007/s10409-017-0636-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Additional hemodynamic parameters are highly desirable in the clinical management of intracranial aneurysm rupture as static medical images cannot demonstrate the blood flow within aneurysms. There are two ways of obtaining the hemodynamic information-by phase-contrast magnetic resonance imaging (PCMRI) and computational fluid dynamics (CFD). In this paper, we compared PCMRI and CFD in the analysis of a stable patient's specific aneurysm. The results showed that PCMRI and CFD are in good agreement with each other. An additional CFD study of two stable and two ruptured aneurysms revealed that ruptured aneurysms have a higher statistical average blood velocity, wall shear stress, and oscillatory shear index (OSI) within the aneurysm sac compared to those of stable aneurysms. Furthermore, for ruptured aneurysms, the OSI divides the positive and negative wall shear stress divergence at the aneurysm sac.

引用

页码：472 / 483

页数：12

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