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Published on: November 22, 2013
Intelligent Diagnosis of Heart Murmurs in Children with Congenital Heart Disease
Jiaming Wang1, Tao You2,3, Kang Yi2,3
1Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
Insights
This study developed an AI tool for diagnosing pediatric congenital heart disease (CHD) murmurs using phonocardiogram (PCG) signals. The intelligent system achieved high accuracy, enabling effective online screening for early detection of CHD in children.
Area of Science:
- Cardiology
- Biomedical Engineering
- Artificial Intelligence
Background:
- Heart auscultation is crucial for early heart disease diagnosis.
- Intelligent systems for online medicine are emerging.
- Limited research exists on intelligent diagnosis of pediatric congenital heart disease (CHD) murmurs.
Purpose of the Study:
- To develop an intelligent diagnostic method for pediatric CHD murmurs.
- To improve early detection of congenital heart disease in children.
Main Methods:
- Collected phonocardiogram (PCG) signals from 86 children (24 normal, 62 with CHD murmurs).
- Implemented a discrete wavelet transform and Hadamard product for heart sound segmentation.
- Extracted ten CHD murmur-specific features.
- Utilized a classification system of 86 artificial neural network classifiers.
Main Results:
- The system achieved 93% accuracy in diagnosing heart murmurs.
- Sensitivity was 93.5% and specificity was 91.7%.
- Successfully identified pediatric CHD murmurs.
Conclusions:
- An intelligent diagnostic method for pediatric CHD murmurs was successfully developed.
- The system is suitable for online screening of CHD in children.
- This approach can aid in early detection and management of pediatric heart conditions.
Abstract:
Heart auscultation is a convenient tool for early diagnosis of heart diseases and is being developed to be an intelligent tool used in online medicine. Currently, there are few studies on intelligent diagnosis of pediatric murmurs due to congenital heart disease (CHD). The purpose of the study was to develop a method of intelligent diagnosis of pediatric CHD murmurs. Phonocardiogram (PCG) signals of 86 children were recorded with 24 children having normal heart sounds and 62 children having CHD murmurs. A segmentation method based on the discrete wavelet transform combined with Hadamard product was implemented to locate the first and the second heart sounds from the PCG signal. Ten features specific to CHD murmurs were extracted as the input of classifier after segmentation. Eighty-six artificial neural network classifiers were composed into a classification system to identify CHD murmurs. The accuracy, sensitivity, and specificity of diagnosis for heart murmurs were 93%, 93.5%, and 91.7%, respectively. In conclusion, a method of intelligent diagnosis of pediatric CHD murmurs is developed successfully and can be used for online screening of CHD in children.
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