Title Smart phone monitoring of second heart sound split
Publication Type Conference Paper
Year of Publication 2014
Authors Thiyagaraja, S, Vempati, J, Dantu, R, Sarma, T, Dantu, S
Conference Name 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Date Published Aug
Keywords acoustic signal processing, aortic component, biomedical equipment, Biomedical monitoring, cardiac diagnosis, cardiology, continuous wavelet transform, Continuous wavelet transforms, discrete wavelet transform, discrete wavelet transforms, fast Fourier transform, fast Fourier transforms, frequency domain, Heart, heart auscultation, heartbeat recording, medical signal processing, Monitoring, patient diagnosis, patient monitoring, pulmonic component, second heart sound split, smart phone monitoring, smart phones, stethoscope
Abstract

Heart Auscultation (listening to heart sounds) is the basic element of cardiac diagnosis. The interpretation of these sounds is a difficult skill to acquire. In this work we have developed an application to detect, monitor, and analyze the split in second heart sound (S2) using a smart phone. The application records the heartbeat using a stethoscope connected to the smart phone. The audio signal is converted into the frequency domain using Fast Fourier Transform to detect the first and second heart sounds (S1 and S2). S2 is extracted and fed into the Discrete Wavelet Transform (DWT) and then to Continuous Wavelet Transform (CWT) to detect the Aortic (A2) and the Pulmonic (P2) components, which are used to calculate the split in S2. With our application, users can continuously monitor their second heart sound irrespective of ages and check for a split in their hearts with a low-cost, easily available equipment.
DOI 10.1109/EMBC.2014.6944050

Publication Status:

  • Published

UNT Department:

  • Computer Science and Engineering (CSE)

UNT Center:

  • Center for Information and Cyber Security (CICS)

UNT Lab:

  • Network Security Laboratory (NSL)
Grant: 
MRI: Development of a Flexible Instrument and Tools for Experimental Research in Next­ Generation 9­-1­-1 Services
Collaborative Research: CRI: IAD: A Testbed for Research and Development of Next Generation 9-­1-­1 Services
Document: 
smartphone_monitoring_second_heart_sound_split.pdf