Influence of postural changes on haemodynamics in internal carotid artery bifurcation aneurysm using numerical methods

作     者：Raghuvir Pai Ballambat Mohammad Zuber Shah Mohammed Abdul Khader Anurag Ayachit Kamarul Arifin bin Ahmad Rajanikanth ao Vedula Sevagur Ganesh Kamath Ibrahim Lutfi Shuaib 

作者机构：Department of Mechanical and Industrial EngineeringManipal Institute of TechnologyManipal Academy of Higher EducationManipal 576104India Department of Aeronautical and Automobile EngineeringManipal Institute of TechnologyManipal Academy of Higher EducationManipal 576104India Department of Radiology and ImagingKasturba Medical CollegeManipal Academy of Higher EducationManipal 576104India Department of Aerospace EngineeringFaculty of EngineeringUniversitist Putra Malaysia43499 Kuala LumpurMalaysia Department of Cardio-Vascular and Thoracic SurgeryKasturba Medical CollegeManipal Academy of Higher EducationManipal 576104India Advanced Medical and Dental InstituteUniversiti Sains Malaysia13200 George TownMalaysia 

出 版 物：《Visual Computing for Industry,Biomedicine,and Art》 (工医艺的可视计算（英文）)

年 卷 期：2022年第5卷第1期

页      面：128-143页

核心收录：

学科分类：0502[文学-外国语言文学] 1303[艺术学-戏剧与影视学] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1301[艺术学-艺术学理论] 1002[医学-临床医学] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0503[文学-新闻传播学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 10[医学] 

基　　金：Department of Mechanical and Industrial Engineering Manipal Academy Manipal Institute of Technology 

主　　题：Carotid aneurysm ANSYS fluid-structure interaction Altered gravity Haemodynamics 

摘      要：Cerebral intracranial aneurysms are serious problems that can lead to stroke,coma,and even *** effect of blood flow on cerebral aneurysms and their relationship with rupture are *** addition,postural changes and their relevance to haemodynamics of blood flow are difficult to measure in vivo using clinical imaging *** simulations investigating the detailed haemodynamics in cerebral aneurysms have been developed in recent times not only to understand the progression and rupture but also for clinical evaluation and *** the present study,the haemodynamics of a patient-specific case of a large aneurysm on the left side internal carotid bifurcation(LICA)and no aneurysm on the right side internal carotid bifurcation(RICA)was *** simulation of these patient-specific models using fluid–structure interaction provides a valuable comparison of flow behavior between normal and aneurysm *** influences of postural changes were investigated during standing,sleeping,and head-down(HD)*** changes in flow were observed during the HD position and quit high arterial blood pressure in the internal carotid artery(ICA)aneurysm model was established when compared to the normal ICA *** velocity increased abruptly during the HD position by more than four times(LICA and RICA)and wall shear stress by four times(LICA)to ten times(RICA).The complex spiral flow and higher pressures prevailing within the dome increase the risk of aneurysm rupture.