ZCHSound:开源的ZJU儿科心脏声音数据库与先天性心脏病
IEEE transactions on bio-medical engineering
|January 9, 2024
概括
研究人员开发了一个大型儿科心脏声音数据库,用于先天性心脏病 (CHD) 诊断. 这种资源有助于医生,并改进智能听力算法,在分类心脏声音方面达到90.3%的准确性.
科学领域:
- 生物医学工程 生物医学工程
- 心脏病学 心脏病学
- 儿科 儿科 儿科
背景情况:
- 先天性心脏病 (CHD) 是儿童中普遍存在的出生缺陷.
- 智能听觉算法可以减少诊断主观性和医生工作量.
- 目前的算法开发受到标准化,公共儿科心脏声音数据库的缺乏所阻碍.
研究的目的:
- 开发一个大规模,高标准,高质量,准确标记的儿科心脏病心声数据库.
- 为临床培训和智能听力算法的发展提供一个有价值的资源.
主要方法:
- 采集了2020年至2022年期间在三个儿童医院的1259名参与者的心脏声信号,使用电子听力镜.
- 通过两名专家心脏外科医生对所有收集的数据进行确认,确保标签的准确性.
- 提取了84个功能,并使用机器学习模型来建立ZCHsound数据库的性能基线.
主要成果:
- ZCHSound数据库被分为高质量 (过) 和低质量 (噪音) 的数据集.
- 一个随机的森林组合模型在高质量的数据集上获得了90.3%的F1分数,用于分类正常与病态的心脏声音.
结论:
- 成功建立了一个大规模的,高质量的,标准化的儿科CHD声音数据库,提供精确的诊断.
- 该数据库是临床听力学和数据支持开发智能听力算法的关键学习资源.
相关概念视频
01:16Heart Valves
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
01:15Heart Sounds
Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
01:25Assessment of the Cardiovascular System IV: Auscultation
Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
01:25Cardiovascular System Abnormal Findings II: Auscultation
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Abnormal Heart Sounds
Gallops:
01:20Mitral Regurgitation I: Introduction
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
01:23Rheumatic Heart Disease I: Introduction
Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...