Spatio-temporal analysis of blood flow in bifurcation of blood vessel using ultrasonic-measurement-integrated simulation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360064
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Tohoku University
• Principal Investigator: HAYASE Toshiyuki 東北大学, 流体科学研究所, 教授 (30135313)
• Co-Investigator(Kenkyū-buntansha): OBAYASHI Shigeru 東北大学, 流体科学研究所, 教授 (80183028) ; SAIJO Yoshifumi 東北大学, 医工学研究科, 教授 (00292277)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: バイオ流体力学 / 計測融合シミュレーション / 超音波計測 / 血流動態 / 脈波

Outline of Final Research Achievements

It has been pointed out that hemodynamics has a strong relationship with occurrence and development of circulatory diseases. However primary parameter to these diseases is still unknown. This research was conducted for a simultaneous analysis of blood pressure (BP) and flow in a carotid artery using photoplethysmography (PPG) and two-dimensional ultrasonic-measurement-integrated (2D-UMI) simulation. The system analyzes BP and flow fields from the viewpoint of influence of phases of BP and flow corresponding to forward and backward waves on vessel wall. The simultaneous analysis system using PPG and 2D-UMI simulation was developed, and characteristics of the blood flow field in a carotid artery was clarified focusing on time variation of the phase corresponding to forward and backward waves identified by wave intensity (WI).

Free Research Field

流体工学