相关实验视频

Updated: Jul 22, 2026

Ultrasonic Assessment of Myocardial Microstructure

Ultrasonic Assessment of Myocardial Microstructure

Published on: January 14, 2014

超声波回散在动脉组织中的角度依赖性:一项体外研究

E Picano, L Landini, A Distante

|September 1, 1985

概括

超声波反射辐射测量显示了人体动脉壁的不同角度依赖的模式,区分正常与动脉样硬化组织. 脂肪斑表现出一种非指导性模式,与其他阶段不同.

科学领域:

生物医学工程生物医学工程
医疗成像医学成像
心血管研究研究心血管研究

背景情况:

动脉样硬化显著改变动脉壁的特性.
定量超声波分析为非侵入性组织表征提供了潜力.

研究的目的:

量化评估反射超声波信号的角度依赖性.
用超声波反射分散来区分正常的人类动脉壁和不同程度动脉样硬化的人.

主要方法:

每个病理学子组 (正常,脂肪,纤维脂肪,纤维,化) 评估了15个标本.
测量后向散射系数 (BS) 在10MHz时,在正常发生率周围的60度角跨度.
分析了取决于角度的散射模式:指导性与非指导性.

主要成果:

在正常发病率下,BS将正常与纤维脂肪,纤维和化样本区分开来.
脂肪样本显示了一种非定向的散射模式,与其他样本不同.
在化,纤维化,纤维脂肪和正常样本中观察到指令分散模式.

结论:

超声波反射散射器的角度依赖性为表征动脉壁病理提供了一种方法.
不同的散射模式与动脉样硬化参与的不同阶段相关.
这种技术可能有助于对动脉样硬化的非侵入性诊断和评估.

更多相关视频

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery

Published on: December 6, 2024

相关概念视频

Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...