通过使用StethAid多中心心脏声数据库评估ConvNets和变压器的有效性
IEEE transactions on bio-medical engineering
|September 4, 2025
概括
主要护理人员现在可以更好地识别使用人工智能的儿童的斯蒂尔语. 用儿科心声训练的深度学习模型显示高准确度, 帮助诊断和减少转诊.
科学领域:
- 心脏病学
- 人工智能
- 儿童健康
背景情况:
- 主要护理人员 (PCP) 难以准确识别斯蒂尔的声.
- 现有的深度学习 (DL) 方法缺乏对儿科斯蒂尔语的关注.
- 需要专门的儿科心声数据库来开发人工智能模型.
研究的目的:
- 创建一个儿科心声数据集.
- 评估使用心电图 (PCG) 的DL方法来识别儿童的斯蒂尔声.
- 评估StethAid数字听力平台的有效性.
主要方法:
- 使用StethAid和Littmann 4100收集了大量的儿科心声数据集 (超过2小时).
- 训练了各种DL模型,包括SQ-NET,ResNet18,AST,DeiT,Swin变压器和DINO.
- 使用分段心声进行训练,AST是例外.
主要成果:
- DL模型实现了高性能:灵敏度为90.7%至100%,特异性为75%至98.2%,准确度为91.3%至98.5%.
- 对特定数据集的预训练至少提高了2%的模型性能.
- 卷积神经网络 (ConvNets) 和转换器都显示出高效率.
结论:
- 开发了有效的DL模型,用于儿童患者的Still声识别.
- 通过使用StethAid平台和人工智能, 可以帮助PCP辨别Still的声.
- 这种解决方案可以减少不必要的转诊和心声回声,提高听觉能力.
更多相关视频
相关概念视频
Heart Sounds
2.3K
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)...
2.3K
Mitral Stenosis II: Clinical features and Diagnostic Tests
36
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
36
Mitral Regurgitation II: Clinical Features and Diagnostic Tests
47
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
47
Cardiovascular System Abnormal Findings II: Auscultation
246
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:
246
Assessment of the Cardiovascular System IV: Auscultation
642
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.
642
Heart Failure IV: Classification and Diagnostic Evaluation
31
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
31


