软件导刊2025，Vol.24Issue(10)：141-148,8.DOI:10.11907/rjdk.241427
心音处理软件功能设计与算法实现
The Function Design and Algorithm Implementation for Heart Sound Processing Software
摘要
Abstract
The application of phonocardiogram(PCG)for diagnosis complements the traditional means of auscultation.Most commercialized PCG processing software,however,is of limited medical significance because they mainly focus on noise reduction,waveform editing and playback.The HeartScreen software is aiming at automatic heart sound annotation and feature extraction so as to provide more useful diagnostic information to doctors.Cardiac cycles are partitioned out of the simultaneously recorded ECG with the proposed software and the onset points of main heart sounds are located.The offset points of the sounds are then determined using the envelogram of the phonocardiogram.Moreover,the isolated cardiac cycles of the same class are summed up to improve signal-to-noise ratio.Five phonocardiogram sequences are used in the ex-periment,which are processed with both the proposed method and manual operation to locate the offset points of the constitute heart sounds.The average difference between the two approaches is 2.7ms and the standard deviation is 9.1ms.Besides,the typical phonocardiograms gener-ated by the software are accepted by cardiologist as medical proofs for diagnosis.The functions of the software satisfy the needs of cardiologist.The annotations of the positions of the heart sounds made by the proposed method show conformity with manual results.As a result,the soft-ware holds the promise of being used in a wider range in computer-assisted diagnosis.关键词
心音处理/心电图/同态滤波/计算机辅助诊断/心脏瓣膜疾病Key words
heart sound processing/electrocardiogram/homomorphic filtering/computer-assisted diagnosis/valvular cardio disease分类
信息技术与安全科学引用本文复制引用
董梁,徐清振,毛明志..心音处理软件功能设计与算法实现[J].软件导刊,2025,24(10):141-148,8.基金项目
国家重点研发计划项目(2018YFC1106804) （2018YFC1106804）
广东省自然科学基金项目(2024A1515010255) （2024A1515010255）
广东省联合培养研究生示范基地项目(202432) （202432）
华南师范大学"本科教育教学数字化转型"校级专项教改项目(教学2023-71-027) （教学2023-71-027）
