Bu Yuxiang, Cha Xingzeng, Zhu Jinling, Su Ye, Lai Dakun
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
Department of Cardiovascular Ultrasound and Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2022 Apr 25;39(2):285-292. doi: 10.7507/1001-5515.202109046.
The diagnosis of hypertrophic cardiomyopathy (HCM) is of great significance for the early risk classification of sudden cardiac death and the screening of family genetic diseases. This research proposed a HCM automatic detection method based on convolution neural network (CNN) model, using single-lead electrocardiogram (ECG) signal as the research object. Firstly, the R-wave peak locations of single-lead ECG signal were determined, followed by the ECG signal segmentation and resample in units of heart beats, then a CNN model was built to automatically extract the deep features in the ECG signal and perform automatic classification and HCM detection. The experimental data is derived from 108 ECG records extracted from three public databases provided by PhysioNet, the database established in this research consists of 14,459 heartbeats, and each heartbeat contains 128 sampling points. The results revealed that the optimized CNN model could effectively detect HCM, the accuracy, sensitivity and specificity were 95.98%, 98.03% and 95.79% respectively. In this research, the deep learning method was introduced for the analysis of single-lead ECG of HCM patients, which could not only overcome the technical limitations of conventional detection methods based on multi-lead ECG, but also has important application value for assisting doctor in fast and convenient large-scale HCM preliminary screening.
肥厚型心肌病(HCM)的诊断对于心脏性猝死的早期风险分类以及家族遗传性疾病的筛查具有重要意义。本研究提出了一种基于卷积神经网络(CNN)模型的HCM自动检测方法,以单导联心电图(ECG)信号作为研究对象。首先,确定单导联ECG信号的R波峰值位置,接着以心跳为单位对ECG信号进行分割和重采样,然后构建CNN模型以自动提取ECG信号中的深度特征并进行自动分类和HCM检测。实验数据来自从PhysioNet提供的三个公共数据库中提取的108份ECG记录,本研究建立的数据库由14459次心跳组成,每次心跳包含128个采样点。结果表明,优化后的CNN模型能够有效检测HCM,准确率、灵敏度和特异性分别为95.98%、98.03%和95.79%。本研究将深度学习方法引入HCM患者单导联ECG分析中,不仅可以克服基于多导联ECG的传统检测方法的技术局限性,而且对于协助医生快速便捷地进行大规模HCM初步筛查具有重要的应用价值。