Time-frequency analysis of pediatric murmurs

Joseph S. Lombardo, Lisa A. Blodget, Ron S. Rosen, Amir Najmi, Reid Thompson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Technology has provided many new tools to assist in the diagnosis of pathologic conditions of the heart. Echocardiography, Ultrafast CT (Cine-CT), and MRI are just a few. While these tools are a valuable resource, they are typically too expensive, large and complex in operation for use in rural, homecare, and physician's office settings. Recent advances in computer performance, miniaturization, and acoustic signal processing, have yielded new technologies that when applied to heart sounds can provide low cost screening for pathologic conditions. The short duration and transient nature of these signals requires processing techniques that provide high resolution in both time and frequency. Short-time Fourier transforms, Wigner distributions, and Wavelet transforms have been applied to signals from hearts with various pathologic conditions. While no single technique provides the ideal solution, the combination of tools provides a good representation of the acoustic features of the pathologies selected.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsR.A. Lieberman, T. Vo-Dinh
Pages177-187
Number of pages11
Volume3253
DOIs
StatePublished - 1998
EventBiomedical Sensing and Imaging Technologies - San Jose, CA, United States
Duration: Jan 26 1998Jan 27 1998

Other

OtherBiomedical Sensing and Imaging Technologies
CountryUnited States
CitySan Jose, CA
Period1/26/981/27/98

Fingerprint

Pediatrics
acoustics
signal processing
Acoustic signal processing
echocardiography
Echocardiography
physicians
pathology
miniaturization
Pathology
wavelet analysis
Magnetic resonance imaging
Wavelet transforms
resources
Fourier transforms
Signal processing
Screening
screening
Acoustics
Acoustic waves

Keywords

  • Pediatric Murmurs
  • Signal Processing
  • Spectrogram
  • Time-Frequency Analysis
  • Wavelet Transforms
  • Wigner Distributions

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lombardo, J. S., Blodget, L. A., Rosen, R. S., Najmi, A., & Thompson, R. (1998). Time-frequency analysis of pediatric murmurs. In R. A. Lieberman, & T. Vo-Dinh (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3253, pp. 177-187) https://doi.org/10.1117/12.308027

Time-frequency analysis of pediatric murmurs. / Lombardo, Joseph S.; Blodget, Lisa A.; Rosen, Ron S.; Najmi, Amir; Thompson, Reid.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / R.A. Lieberman; T. Vo-Dinh. Vol. 3253 1998. p. 177-187.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lombardo, JS, Blodget, LA, Rosen, RS, Najmi, A & Thompson, R 1998, Time-frequency analysis of pediatric murmurs. in RA Lieberman & T Vo-Dinh (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3253, pp. 177-187, Biomedical Sensing and Imaging Technologies, San Jose, CA, United States, 1/26/98. https://doi.org/10.1117/12.308027
Lombardo JS, Blodget LA, Rosen RS, Najmi A, Thompson R. Time-frequency analysis of pediatric murmurs. In Lieberman RA, Vo-Dinh T, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3253. 1998. p. 177-187 https://doi.org/10.1117/12.308027
Lombardo, Joseph S. ; Blodget, Lisa A. ; Rosen, Ron S. ; Najmi, Amir ; Thompson, Reid. / Time-frequency analysis of pediatric murmurs. Proceedings of SPIE - The International Society for Optical Engineering. editor / R.A. Lieberman ; T. Vo-Dinh. Vol. 3253 1998. pp. 177-187
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