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相关概念视频

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

331
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
331
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

271
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
271

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相关实验视频

Updated: Jul 4, 2025

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
06:34

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Published on: October 28, 2020

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使用混合几何成像序列在心声学中提高了时空分辨率.

Blake A Herrema, Nazli Javadi Eshkalak, Nick Bottenus

    IEEE transactions on ultrasonics, ferroelectrics, and frequency control
    |February 8, 2024
    PubMed
    概括
    此摘要是机器生成的。

    这项研究引入了一种新的"混合序列"超声波方法,以改善心脏运动成像. 通过结合不同的光束类型,它可以增强对心脏的可视化.

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    相关实验视频

    Last Updated: Jul 4, 2025

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    High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
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    科学领域:

    • 医学成像医学成像
    • 超声波技术的超声波技术
    • 心血管诊断心血管诊断

    背景情况:

    • 心脏超声波在平衡空间和时间分辨率方面面临挑战.
    • 像合成光圈 (SA) 序列这样的现代技术可以引入运动工件.
    • 传统超声波序列的回顾编码 (REFoCUS) 统一处理,但其运动灵敏度尚不清楚.

    研究的目的:

    • 为了研究REFoCUS的运动灵敏度.
    • 开发和评估使用REFoCUS的"混合序列",以改善心脏运动成像.
    • 评估混合序列在高率心脏成像中的潜力.

    主要方法:

    • 模拟的REFoCUS运动灵敏度分析,具有聚焦和宽广的传输配置文件.
    • 混合序列的设计,结合平面波 (PW) 和聚焦传输.
    • 在心脏和肝脏成像上混合序列的体内和模拟测试.

    主要成果:

    • 与广度传输相比,聚焦传输显示出更高的侧向和轴向运动分辨率.
    • 混合序列有效地结合了稀疏的PW和有针对性的聚焦传输.
    • 在高峰速度时,获得了前额头门 (AML) 传单的更好的分辨率.

    结论:

    • 混合序列显示出解决心脏运动的巨大潜力.
    • 这种方法可以实现心脏超声波临床相关的率.
    • 通过REFoCUS方法,可以开发先进的成像序列.