Analysis of vertebrobasilar dolichoectasia based on computational fluid dynamics
10.3969/j.issn.1671-167X.2015.02.022
- VernacularTitle:椎基底动脉延长扩张症的计算流体力学分析
- Author:
Jintao HAN
;
Huiting QIAO
;
Xu HAN
;
Xuan LI
;
Qingyuan HE
;
Shan YE
;
Jingyuan LUAN
;
Changming WANG
;
Guoxiang DONG
- Publication Type:Journal Article
- Keywords:
Vertebrobasilar insufficiency;
Hydrodynamics;
Hemodynamics
- From:
Journal of Peking University(Health Sciences)
2015;(2):302-304
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To anslysis the hemodynamic states of vertebrobasilar dolichoectasia based on computational fluid dynamics technique.Methods:The original DICOM format image data from a patient with vertebrobasilar dolichoectasia (VBD), were imported by the Mimics software directly,and the 3D Objects were constructed.The simulation of model was made with Ansys software, the hemodynamic pa-rameters such as streamlines, wall shear stress( WSS) and wall pressure were described.Results:There was stable laminar flow in proximal basilar artery and was no blood flow mixed by bilateral vertebral arter-y.However, Spiral flows were appeared in distal tortuous basilar artery.The low WSS regions in the ver-tebra-basilar junction section and inferior segment of basilar artery were coincide with the high wall pres-sure regions.It could be speculated the initial growth regions might be located in the vertebra-basilar junction section and inferior segment of basilar artery.Local regions with low WSS and high wall pressure might be associated with the occurrence and development of VBD.Conclusion: CFD numerical simula-tion maybe can provide a theoretical basis for the role of hemodynamic factors in occurrence and develop-ment of VBD.
