在使用基于斯托克威尔变换的深度特征的声心图中识别声和预测结果
Omid Dehghan Manshadi1, Sara Mihandoost2
1Department of Electrical Engineering, Urmia University of Technology, Urmia, Iran.
Scientific reports
|March 30, 2024
概括
这项研究引入了一种新的半监督模型,用于使用心声图 (PCG) 检测心脏声. 人工智能模型在识别语和预测临床结果方面取得了高准确性,改进了传统方法.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 人工智能的人工智能
背景情况:
- 对心脏声进行心脏听觉需要专门的专业知识.
- 声心图 (PCG) 提供了用于声检测的替代数据源.
- 开发PCG分析的自动化方法对于更广泛的临床应用至关重要.
研究的目的:
- 用PCG来预测临床结果 (正常/异常) 和检测心脏声.
- 开发和评估一个半监督模型,用于增强PCG分类.
- 为了提高诊断性能,利用时间频率深度特征.
主要方法:
- 通过使用斯托克威尔变换来创建时间频率图 (TFM) 的时间频率领域的研究PCG信号.
- 使用AlexNet从TFM中提取深度特征,然后进行特征减少.
- 在CinC/Physionet挑战2022数据集上使用三个分类器评估特征有效性.
主要成果:
- 实现了93%的准确性,91%的灵敏度和91%的F1分数用于心脏声检测 (任务I).
- 为预测患者的结果 (任务II) 证明了5290的临床结果成本,超过了基准方法.
- 拟议的半监督模型有效地利用深度时间频率特征进行PCG分析.
结论:
- 开发的半监督模型显示了自动心脏声检测和临床结果预测的重大前景.
- 来自PCG的时间频率深度特征对于提高诊断准确性是有效的.
- 这种方法比传统的心脏听力学方法具有潜在的进步.
更多相关视频
10:53Ultrasonic Assessment of Myocardial Microstructure
Published on: January 14, 2014
5.5K
11:50High-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
24.1K
相关概念视频
Cardiovascular System Abnormal Findings II: Auscultation
139
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:
139
Heart 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
Equipments Used To Measure Blood Pressure
966
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
966
Imaging Studies for Cardiovascular System II:Types of Echocardiography
258
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...
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...
258
