实用放射学杂志
實用放射學雜誌
실용방사학잡지
JOURNAL OF PRACTICAL RADIOLOGY
2014年
5期
845-847
,共3页
庄银苹%王权%张彬%侯琳%周思远%祖茂衡
莊銀蘋%王權%張彬%侯琳%週思遠%祖茂衡
장은평%왕권%장빈%후림%주사원%조무형
布-加综合征%血流动力学%切应力%下腔静脉隔膜
佈-加綜閤徵%血流動力學%切應力%下腔靜脈隔膜
포-가종합정%혈류동역학%절응력%하강정맥격막
budd chiari syndrome%hemodynamics%shear stress%inferior vena venous membrane
目的:应用计算机仿真的方法研究布-加综合征血管的血流动力学变化。方法基于 MRA 图像建立布-加综合征血管模型,利用 Ansys Fluent 软件进行血流参数仿真。结果成功建立布-加综合征血管模型,肝静脉3支主干与下腔静脉汇合处及其上方,血管压力变大、速度变缓、切应力变小。结论下腔静脉血流动力学变化区域与下腔静脉隔膜好发部位基本一致,与下腔静脉隔膜的发生存在一定的相关性,为研究布-加综合征的发病机制奠定基础。
目的:應用計算機倣真的方法研究佈-加綜閤徵血管的血流動力學變化。方法基于 MRA 圖像建立佈-加綜閤徵血管模型,利用 Ansys Fluent 軟件進行血流參數倣真。結果成功建立佈-加綜閤徵血管模型,肝靜脈3支主榦與下腔靜脈彙閤處及其上方,血管壓力變大、速度變緩、切應力變小。結論下腔靜脈血流動力學變化區域與下腔靜脈隔膜好髮部位基本一緻,與下腔靜脈隔膜的髮生存在一定的相關性,為研究佈-加綜閤徵的髮病機製奠定基礎。
목적:응용계산궤방진적방법연구포-가종합정혈관적혈류동역학변화。방법기우 MRA 도상건립포-가종합정혈관모형,이용 Ansys Fluent 연건진행혈류삼수방진。결과성공건립포-가종합정혈관모형,간정맥3지주간여하강정맥회합처급기상방,혈관압력변대、속도변완、절응력변소。결론하강정맥혈류동역학변화구역여하강정맥격막호발부위기본일치,여하강정맥격막적발생존재일정적상관성,위연구포-가종합정적발병궤제전정기출。
Objective In order to study the hemodynamics changes of the Budd Chiari syndrome vascular based on Computer Sim-ulation.Methods Three dimensional reconstruction model is established based on MRA medical images.Then take use of Ansys Fluent software to simulate hemodynamic parameters.Results Budd Chiari syndrome vascular model is established successfully. The hemodynamics changes on/above the vascular confluence of inferior vena cava with three main hepatic veins.Contract to the flow inlet of inferior vena cava,blood pressure becomes larger,the speed becomes slower and shear stress becomes smaller.Conclu-sion The inferior vena venous hemodynamics changes region is almost consistent with inferior vena venous predilection location. The study lays the groundwork for future study of Budd Chiari syndrome negotiations.