Cardiac Auscultation Using Smartphones: a Proof-of-concept Study
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Cardiovascular Physiological Phenomena
- Sponsor
- Seoul National University Hospital
- Enrollment
- 46
- Locations
- 1
- Primary Endpoint
- Accuracy of "CPstethoscope" in interpretation of heart sounds
- Status
- Completed
- Last Updated
- 8 years ago
Overview
Brief Summary
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.
Detailed Description
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).
Investigators
Jung-Won Suh
MD, PhD
Seoul National University Hospital
Eligibility Criteria
Inclusion Criteria
- •subjects who gave informed consent
- •subjects who are 18 years old or older and had performed ECG and echocardiography during the previous 6 months.
Exclusion Criteria
- •subjects with impairment of cognition
Outcomes
Primary Outcomes
Accuracy of "CPstethoscope" in interpretation of heart sounds
Time Frame: 0
specificity, sensitivity, negative predictive value, positive predictive value