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Development of digital stethoscope system making use of patients at home

Research Project

Project/Area Number 17591272
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionYamaguchi University

Principal Investigator

MATSUMOTO Tsuneo  Yamaguchi University, Graduate School of medicine, Associate professor (70116755)

Co-Investigator(Kenkyū-buntansha) KIDO Shoji  Yamaguchi University, Graduate School of medicine, Professor (90314814)
JIANG Zhongwei  Yamaguchi University, Graduate School of Science and Engineering, Professor (60225357)
TANAKA Nobuyuki  Yamaguchi University, School of medicine, Research Associate (90294636)
AWAYA Hitomi  Yamaguchi University, Research Associate (10397995)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2005: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordsat home / CT / digital stethoscope / respiratory disease / respiratory sound / 聴診器 / デジタル
Research Abstract

Informed consent was obtained to the patient of 114 examples, and preservation of their respiratory sounds and CT images were performed. The respiratory sound data were recorded with a digital stethoscope (Power Stethoscope, Starky Japan, Yokohama) from 12 sites on the chest. Chest high-resolution CT (HRCT) at the inspiratory and expiration phase was performed.
First, the program, which detects an unusual domain from the respiratory sound data with wavelet conversion, was developed. Secondary, to evaluate the characteristics of the crackle in detail, we used three parameters of the duration initial deflection width (IDW) and two-cycle duration (2CD). The distinction program of fine crackle and coarse crackle was developed. Good correlation was obtained between these parameters and the HRCT. And, for another evaluation of the characteristics of the crackle, statistics of the adjoining waveform interval were used. The procedure of acquisition of wave-like time interval statistics value, creation of histogram and discernment by the degree of similar performed the technique. And the statistics value using the ratio of the adjoining waveform interval identified 97% of the coarse crackles of a doctor's auscultation view, 80% of a coarse crackle, and 98% of normal sound.
About the digital stethoscope for respiratory sound collection, the wireless electronic auscultation analysis system was made as an experiment this time. It is divided roughly into a stethoscope module, wireless audio transmission and a receiving module, and sound analysis software. It also becomes possible to use to combine a module if needed, a commercial electronic stethoscope, an external storage, etc.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (16 results)

All 2007 2006 2005

All Journal Article (15 results) Book (1 results)

  • [Journal Article] Interstitial opacities in plain chest radiography2007

    • Author(s)
      Tsuneo Matsumoto
    • Journal Title

      Japanese journal of diagnostic imaging 27(2)

      Pages: 76-108

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 肺間質陰影2007

    • Author(s)
      松本 常男
    • Journal Title

      画像診断 27(臨時増刊号)

      Pages: 75-108

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 肺癌術後合併症の画像所見2007

    • Author(s)
      粟屋 ひとみ
    • Journal Title

      臨床放射線 52・1

      Pages: 35-48

    • Related Report
      2006 Annual Research Report
  • [Journal Article] ワイヤレス電子聴診システムと異常心音解析法の開発2006

    • Author(s)
      江 鐘偉
    • Journal Title

      日本機械学会論文集C編 71.711

      Pages: 3246-3253

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A cardiac sound characteristic waveform method for in-home heart disorder monitoring with electric stethoscope2006

    • Author(s)
      江 鐘偉
    • Journal Title

      Expert System with Applications 31

      Pages: 286-298

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A cardiac sound characteristic waveform method for in-home heart disorder monitoring with electric stethoscope.2006

    • Author(s)
      Zhongwei Jiang
    • Journal Title

      Expert System with Applications 31

      Pages: 386-298

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A novel wearable sensor device with conductive fabric and PVDF film for monitoring cardiorespiratory signals2006

    • Author(s)
      江 鐘偉
    • Journal Title

      Sensors and Actuators A 128

      Pages: 317-326

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 免疫不全患者の肺合併症の画像診断2005

    • Author(s)
      田中 伸幸
    • Journal Title

      画像診断 25巻1号

      Pages: 96-108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] 肺気腫に合併した肺癌2005

    • Author(s)
      松本 常男
    • Journal Title

      日本医事新報 4219

      Pages: 69-72

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Computer-aided diagnosis for diffuse lung diseases on CT images2005

    • Author(s)
      木戸 尚治
    • Journal Title

      Japanese Journal of Medical Physics 25(suppl.3-1)

      Pages: 56-59

    • NAID

      130008062565

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Imaging of pulmonary complication in immunodeficient patients2005

    • Author(s)
      Nobuyuki Tanaka
    • Journal Title

      Japanese journal of diagnostic imaging 25(1)

      Pages: 96-108

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Lung cancer associated with pulmonary emphysema2005

    • Author(s)
      Tsuneo Matsumoto
    • Journal Title

      Japanese medical journal 4219

      Pages: 69-72

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Computer-aided diagnosis for diffuse lung diseases on CT images2005

    • Author(s)
      Shoji Kido
    • Journal Title

      Japanese Journal of Medical Physics,(suppl.3-1) 25

      Pages: 56-59

    • NAID

      130008062565

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Development of wireless electronic stethoscope system and abnormal cardiac sound analysis method(sound characteristic waveform analysis)2005

    • Author(s)
      Zhongwei Jiang
    • Journal Title

      Transactions of the Japan Society of Mechanical Engineers 71(711)

      Pages: 3246-3253

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Computer-aided diagnosis for diffuse lung diseases on CT images2005

    • Author(s)
      木戸 尚治
    • Journal Title

      Japanese Journal of Medical Physics 25(sup.3-1)

      Pages: 56-59

    • NAID

      130008062565

    • Related Report
      2005 Annual Research Report
  • [Book] 画像診断胸部単純X線診断をきわめる, 肺間質陰影(共著)2007

    • Author(s)
      松本 常男
    • Total Pages
      34
    • Publisher
      秀潤社
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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