CLINICAL VALUE OF LUNG SOUNDS VISUALIZED BY STETHOGRAM

通过听诊图可视化肺音的临床价值

• 批准号: 3500575
• 负责人: RAYMOND L H MURPHY
• 金额: $ 5万
• 依托单位: PULMONOLOGY SERVICES, INC.
• 依托单位国家: 美国
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-30 至 1986-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3500575
• 关键词: clinical biomedical equipment; congestive heart failure; human subject; image processing; imaging /visualization /scanning; lung disorder; noninvasive diagnosis; pneumonia; pulmonary fibrosis /granuloma; respiratory airflow disorder; respiratory disorder diagnosis; respiratory function; respiratory imaging /visualization

Preliminary observations indicate that objective lung sound analysis provides important noninvasive diagnostic information of common pulmonary conditions. Such analysis can also be used to validate the accuracy of observers using stethoscopes and improve the learning process. This type of analysis can now be readily performed with a Stethograph, an innovative device that makes visual displays of the sounds and permits precise semiautomatic measurements of sonic waveform features. Stethophonics, a small business, proposes to market Stethographs presuming that these preliminary observations are confirmed in a larger group of patients. In this Phase I study, the lung sounds of 100 patients will be examined; 20 in each of the following categories: interstitial fibrosis, congestive heart failure, chronic obstructive pulmonary disease, pneumonia and normal. Independent classification of these lung sound studies will be compared to the clinical diagnosis. The teaching value will be assessed by measuring pre and post test results during direct auscultation and on listening to tape recordings of observers provided with Stethograms as compared to observers taught standard clinical methods alone. The effect of visual displays on observer variability will also be studied. Phase II will include a market survey of teaching institutions and the industrial setting where ausculation already has proven value.

初步观察表明客观肺音分析 提供了重要的非侵入性诊断信息的常见肺 条件 这种分析也可以用来验证 观察员使用听诊器和改善学习过程。 这种类型 现在可以很容易地进行分析与Stethograph，创新 使声音的视觉显示和允许精确的装置 声波波形特征的半自动测量。 Stethophonics是一家小企业，它建议销售Stethographs， 这些初步观察结果在一个更大的群体中得到了证实， 患者 在这项I期研究中，将对100名患者的肺音进行检测。 检查;以下类别各20例：间质性纤维化， 充血性心力衰竭，慢性阻塞性肺疾病，肺炎 和正常人 这些肺音研究的独立分类将 与临床诊断相比。 教学价值将通过以下方式进行评估： 在直接听诊期间测量测试前和测试后结果， 收听观察员的录音带， 与只教授标准临床方法的观察者相比。 效果 还将研究视觉显示对观察者变异性的影响。 二期 将包括对教学机构和工业部门的市场调查， 听诊已经被证明是有价值的。