Cardiac Auscultation Using Smartphones: a Proof-of-concept Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 46
- 试验地点
- 1
- 主要终点
- Accuracy of "CPstethoscope" in interpretation of heart sounds
研究概览
简要总结
The investigators performed a proof-of-concept study enrolling subjects with normal and pathologic heart sounds. Heart sound was recorded by auscultation on the skin of the chest wall using three smartphones: Samsung Galaxy S5 and Galaxy S6, and LG G3 . Recorded heart sounds were processed and classified by a diagnostic algorithm using convolutional neural networks.
详细描述
Heart sound recording was done by researchers who were familiar with the use of the app and understand the principles of cardiac auscultation.
Reference heart sounds were recorded using an electronic stethoscope (3M™ Littmann® Electronic Stethoscope Model 3200). Study devices included Samsung Galaxy S5 (model SM-G900), Galaxy S6 (SM-G920), and LG G3 (LG-F400).
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 接受健康志愿者
- 否
入选标准
- •subjects who gave informed consent
- •subjects who are 18 years old or older and had performed ECG and echocardiography during the previous 6 months.
排除标准
- •subjects with impairment of cognition
结局指标
主要结局
Accuracy of "CPstethoscope" in interpretation of heart sounds
时间窗: 0
specificity, sensitivity, negative predictive value, positive predictive value
次要结局
未报告次要终点
研究者
Jung-Won Suh
MD, PhD
Seoul National University Hospital