相关实验视频

Updated: Jun 16, 2025

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

狗的斑点追踪回声心脏学:评估全球纵向菌株评估中的成像参数和方法变化

Jonas E Mogensen¹, Maiken B T Bach¹, Pernille G Bay¹

¹Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark.

Animals : an open access journal from MDPI

|June 13, 2025

概括

图像预缩短和心率变化显著影响二维斑点跟踪回声心脏图 (2D-STE) 全球纵向应变 (GLS) 的测量. 优化图像采集对于可靠的2D-STE分析至关重要.

科学领域:

心脏病学心脏病学
医疗成像医学成像
兽医超声波检查兽医超声波检查

背景情况:

二维斑点跟踪回声心电图 (2D-STE) 提供了定量心肌功能评估.
在超声波相互作用期间分析斑点运动为心脏表现提供了洞察力.
可靠的2D-STE需要了解技术参数对应变测量的影响.

研究的目的:

评估2D-STE在全球纵向应变 (GLS) 测量中的可靠性.
评估技术参数对2D-STE精度的影响.
为了比较两种GE医疗保健的斑点跟踪方法:二维菌株和自动化功能成像 (AFI).

主要方法:

在两组健康狗 (n=16和n=10) 中进行前性研究.
评估率,心率变化,变焦,频率和预缩短对2D-STE的影响.
对比2D菌株和AFI,以获得一致性和观察者变异性.

主要成果:

预先缩短 (p < 0.01) 和心率变化 (p = 0.02) 显著影响了斑点跟踪测量.
变焦,率和频率没有显著影响.
尽管存在很强的相关性,但AFI系统地低估了与二维菌株相比的GLS;观察者内部/观察者间CVs为<9%.

结论:

预缩短和心率变化是影响2D-STE GLS准确性的关键因素.
虽然2D压力和AFI都是可靠的,但图像采集优化至关重要.
仔细选择成像参数和标准提高了斑点跟踪分析的可靠性.

关键词:

2D-STE可以使用.狗类犬类动物狗类犬类狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗全球纵向菌株全球纵向菌株心灵的心灵心灵的心灵心灵的心灵心肌功能是什么心肌功能斑点跟踪回声心脏图谱 (speckle-tracking echocardiography) 是一种跟踪斑点的回声心脏图谱.

更多相关视频

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

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

Published on: July 9, 2010

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Published on: February 14, 2017

相关概念视频

Imaging Studies for Cardiovascular System I:Echocardiography

Imaging Studies for Cardiovascular System I:Echocardiography

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,...

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Imaging Studies for Cardiovascular System II:Types of Echocardiography

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...