Analysis of blood flow and pulse wave propagation in carotid artery for diagnosis of cerebrovascular system

颈动脉血流和脉搏波传播分析用于脑血管系统诊断

• 批准号: 23650299
• 负责人: HASEGAWA Hideyuki
• 金额: $ 1.75万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23650299/
• 关键词: 脈波; 血流; 流線; 血管動態; 超音波

In the present study, the regional pulse wave propagation and reflection of pulse wave from the cerebrovascular system were analyzed using a custom system which realizes ultrasonic imaging at a frame rate of a few thousands Hz. We have developed a method for measurement of regional propagation velocities of forward and reflected waves individually in the carotid artery, the forward and reflected waves were identified successfully. Furthermore, for detailed analysis of blood flow dynamics, ultrasonic echoes from blood particles were visualized successfully, and the stream lines were also visualized by spatial frequency analysis of ultrasonic echoes from blood particles.

在本研究中，区域脉搏波的传播和反射的脉搏波从脑血管系统进行了分析，使用自定义系统，实现了超声成像的帧速率为几千赫兹。本文提出了一种测量颈动脉中正向波和反射波区域传播速度的方法，成功地识别了正向波和反射波。此外，为了更详细地分析血流动力学，成功地可视化了来自血液颗粒的超声回波，并且通过对来自血液颗粒的超声回波的空间频率分析也可视化了流线。

项目成果

血管脈壁内膜面の表面粗さ推定を目指した超音波RFエコーに基づくブロックマッチング

基于超声射频回波的块匹配旨在估计血管壁内膜表面的表面粗糙度

• 发表时间: 2011
• 作者: Furusawa Y.;Y. Fujiwara;P. Campbell;Q. L. Zhao;R. Ogawa;M. A. Hassan;Y. Tabuchi;I. Takasaki;A. Takahashi;T. Kondo;大場一寛，浪田健，森本拓朗，加藤祐次，清水孝 一;北村浩典，長谷川英之，金井 浩
• 通讯作者: 北村浩典，長谷川英之，金井 浩

Visualization of Forward and Reflected Components in Minute Vibration Velocity Waveform of Human Arterial Wall

人体动脉壁微小振动速度波形中前向和反射分量的可视化

• 发表时间: 2011
• 作者: 山口泉;藤田英雄;大江和彦;奥山雄基，浪田健，加藤祐次，清水孝一;本江和恵,長谷川英之,金井浩
• 通讯作者: 本江和恵,長谷川英之,金井浩

Non-invasive Ultrasonic Detection of Boundaries

非侵入式超声波边界检测

• 发表时间: 2011
• 作者: Furusawa Y.;et al.;N. B. Ibrahim，H. Hasegawa，H. Kanai
• 通讯作者: N. B. Ibrahim，H. Hasegawa，H. Kanai

Suppression of Sidelobe in High Frame Rate Echocardiography Using Diverging Beams

使用发散光束抑制高帧率超声心动图中的旁瓣

• 发表时间: 2012
• 作者: K. Shimizu;N. Tobisawa;T. T.Nghia;T. Namita and Y. Kato;Hideyuki Hasegawa and Hiroshi Kanai
• 通讯作者: Hideyuki Hasegawa and Hiroshi Kanai

Measurement of Displacement and Strain in Biological Tissue Generated by Ultrasound Dual Acoustic Radiation Force

超声双声辐射力产生的生物组织位移和应变的测量

• DOI: 10.1007/s10396-012-0372-9
• 发表时间: 2012
• 期刊: Journal of Medical Ultrasonics
• 影响因子: 1.8
• 作者: Jun Yamaguchi;Hideyuki Hasegawa;and Hiroshi Kanai
• 通讯作者: and Hiroshi Kanai