预测膜心脏病的算法从心脏声音在一个未经选择的队列中的队列
Per Niklas Waaler1, Hasse Melbye2, Henrik Schirmer3,4,5
1Department of Computer Science, UiT The Arctic University of Norway, Tromsø, Norway.
Frontiers in cardiovascular medicine
|February 8, 2024
概括
机器学习算法在从心脏声音中检测大动脉狭窄时显示出高准确度,超过了之前的研究. 虽然对大动脉和心肌吐的效果较低,但随着临床数据的增加,准确性会提高,特别是在症状病例中.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 医学诊断 医学诊断 医学诊断
背景情况:
- 心脏病 (VHD) 影响着相当一部分人口.
- 早期发现VHD对于有效的管理和改善患者的治疗结果至关重要.
- 目前的诊断方法可能是侵入性的或需要专门的设备.
研究的目的:
- 评估先进的机器学习算法在使用数字心脏声音记录识别VHD时的有效性.
- 评估这些算法在VHD不同阶段的性能,包括无症状个体.
- 将算法性能与传统的诊断标准进行比较.
主要方法:
- 在Tromsø7研究中,使用2124名参与者的心脏声音记录来开发和训练一次性神经网络.
- 通过使用数字耳镜从四个耳点收集录音.
- 该模型预测了声,然后用于诊断VHD,并通过心声回声学证实.
主要成果:
- 该算法在检测大动脉狭窄 (AS) 方面实现了高灵敏度 (90.9%) 和特异性 (94.5%),AUC为0.979.
- 检测中度或较大的大动脉反 (AR) 和心肌反 (MR) 的性能中度 (AUC分别为0.634和0.549).
- 结合临床变量显著改善了AR和MR检测 (AUC为0.766和0.677),症状病例的准确性更高.
结论:
- 机器学习模型显示出在一般人群中AS检测的巨大潜力.
- 仅使用心脏声来检测AR和MR是具有挑战性的,但通过临床数据整合和专注于症状患者来改善.
- 这种人工智能驱动的方法可能会增强非侵入性VHD查和诊断.
更多相关视频
04:48Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
Published on: November 28, 2018
8.0K
11:04Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
Published on: September 1, 2014
11.2K
相关概念视频
01:15Heart Sounds
1.9K
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)...
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)...
1.9K
01:25Assessment of the Cardiovascular System IV: Auscultation
334
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.
334
01:25Cardiovascular System Abnormal Findings II: Auscultation
149
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:
149
01:16Heart Valves
4.6K
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...
4.6K
01:20Imaging Studies for Cardiovascular System III: X-Ray
188
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
188
01:17Imaging 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,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
331