Development of digital stethoscope system making use of patients at home

开发利用家庭患者的数字听诊器系统

• 批准号: 17591272
• 负责人: MATSUMOTO Tsuneo
• 金额: $ 2.3万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17591272/
• 关键词: at home; CT; digital stethoscope; respiratory disease; respiratory sound; 聴診器; デジタル

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.

对114例患者征得知情同意，并对其呼吸音和CT图像进行保存。用数字听诊器(Power听诊器，Starky Japan，Yokohama)记录胸部12个部位的呼吸声数据。首先进行了吸气相和呼气相的胸部高分辨率CT(HRCT)扫描，然后利用小波变换从呼吸声数据中检测出异常域。其次，为了详细评估裂纹的特性，我们采用了持续时间、初始挠度宽度(IDW)和两个周期持续时间(2CD)三个参数。编制了细裂纹和粗裂纹的识别程序。这些参数与HRCT有很好的相关性。并且，对于裂纹的特征的另一评估，使用相邻波形间隔的统计。实现了波形时间间隔统计量的获取、直方图的生成和相似度识别的过程。利用相邻波形间隔比的统计值识别医生听诊视野中97%的粗爆声、80%的粗爆声和98%的正常声音。针对呼吸音采集的数字听诊器，本次以无线电子听诊分析系统为实验。它大致分为听诊器模块、无线音频传输和接收模块以及声音分析软件。如果需要，它还可以用于组合模块、商用电子听诊器、外部存储器等。

项目成果

画像診断胸部単純X線診断をきわめる, 肺間質陰影(共著)

影像诊断：掌握胸部X线平片诊断、肺间质阴影（合着）

• 发表时间: 2007
• 作者: Higashino H;Mochizuki T;等;Shoji Kido;Ayame Shimizu;Zhongwei Jiang;Katsuyoshi Ito;木戸 尚治;Sumitani S;松本 常男
• 通讯作者: 松本 常男

肺間質陰影

肺间质阴影

• 发表时间: 2007
• 期刊: 画像診断 27(臨時増刊号)
• 作者: 金澤 右;郷原英夫;向井 敬;平木隆夫;田尻展久;櫻井 淳;Ejima Y;松本 常男
• 通讯作者: 松本 常男

Development of wireless electronic stethoscope system and abnormal cardiac sound analysis method(sound characteristic waveform analysis)

无线电子听诊器系统开发及异常心音分析方法（声音特征波形分析）

• 发表时间: 2005
• 期刊: Transactions of the Japan Society of Mechanical Engineers 71(711)
• 作者: Higashino H;Mochizuki T;等;Shoji Kido;Ayame Shimizu;Zhongwei Jiang
• 通讯作者: Zhongwei Jiang

肺癌術後合併症の画像所見

肺癌术后并发症的影像学表现

• 发表时间: 2007
• 期刊: 臨床放射線 52・1
• 作者: 金澤 右;郷原英夫;向井 敬;平木隆夫;田尻展久;櫻井 淳;Ejima Y;松本 常男;粟屋 ひとみ
• 通讯作者: 粟屋 ひとみ

Imaging of pulmonary complication in immunodeficient patients

免疫缺陷患者肺部并发症的影像学检查

• 发表时间: 2005
• 期刊: Japanese journal of diagnostic imaging 25(1)
• 作者: Higashino H;Mochizuki T;Haraikawa T;Kurata A;Kido T;Nakata S;Sugawara Y;Miyagawa M;Miki H;Koyama Y;Okayama H;Higaki J;Nobuyuki Tanaka
• 通讯作者: Nobuyuki Tanaka