相关实验视频

Updated: Sep 13, 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

开发半自动算法,用于后侧静脉曲的心声诊断后侧静脉曲

Nicolò Bergo¹, Alessandro Piccolo², Francesca Maria Susin³

¹Department of Surgical, Medical & Molecular Pathology & Critical Care Medicine, University of Pisa, Pisa, Italy; Department of Civil, Environmental & Architectural Engineering, University of Padova, Padova, Italy; The BioRobotics Institute & Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Pisa, Italy.

Ultrasound in medicine & biology

|July 26, 2025

概括

新的心声回声学方法 - - 中心环到下基底壁旋转角度 (MIRA) 和中心环到下基底壁角度 (MAIBA) - - 在诊断后侧缩 (PSC) 方面显示出高准确度. 这些工具可以更好地识别患有心室节律失常和心脏突然死亡风险的患者.

科学领域:

心脏病学心脏病学
生物医学工程生物医学工程
医疗成像医学成像

背景情况:

后侧收缩曲线 (PSC) 是恶性心室节律失常和心脏突然死亡的已知的危险因素.
准确诊断PSC对于风险分层和患者管理至关重要.

研究的目的:

开发和验证用于量化PSC的半自动算法.
引入新的心声回声学参数:中枢环向低基底壁旋转角 (MIRA) 和中枢环向低基底壁旋转角 (MAIBA).

主要方法:

使用心脏组织跟踪和图像处理技术.
算法在100名患者身上进行了测试,这些患者使用横侧心脏回声扫描在侧长轴视图中进行测试.
患者被分为PSC阳性和PSC阴性组.

主要成果:

MIRA和MAIBA与手动测量有很强的相关性 (皮尔森的r=0.70和0.80).
鉴定PSC的诊断准确率为MIRA的76%和MAIBA的85%.
通过布兰德-阿尔特曼分析显示出卓越的观察者间可靠性 (ICC>0.97) 和一致性.

结论:

MIRA和MAIBA角度是可靠和准确的PSC诊断的有希望的工具.
这些参数可以增强临床决策,识别心律失常风险.
该研究支持在管理PSC时改善诊断支持的潜力.

关键词:

算法算法是一种算法.节律失常是因为心律失常心声回声扫描 (Echocardiography) 是一种心声回声扫描.中心门的中心门后侧心缩曲的情况半自动的半自动的

更多相关视频

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Published on: October 28, 2020

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

Published on: September 1, 2014

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...