Cardiac Auscultation Using Smartphones

Cardiovascular Physiological Phenomena Clinical Trial

Official title:

Cardiac Auscultation Using Smartphones: a Proof-of-concept Study

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03273803
• Other study ID #: B-1609-361-303
• Status: Completed
• Phase: N/A
• First received: September 3, 2017
• Last updated: September 5, 2017
• Start date: August 24, 2016
• Est. completion date: June 8, 2017

Study information

• Verified date: September 2017
• Source: Seoul National University Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial 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.

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).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 46
• Est. completion date: June 8, 2017
• Est. primary completion date: October 31, 2016
• Gender: All
• Age group: N/A and older

Eligibility

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

Related Conditions & MeSH terms

• Cardiovascular Physiological Phenomena

Intervention

Diagnostic Test:
• Heart sound recording using smartphone application
Heart sound recording and analysis using android smartphones (Samsung Galaxy S5, Galaxy S6, and LG G3)

Locations

Country	Name	City	State
Korea, Republic of	Seoul National University Bundang Hospital	Seongnam	Gyeonggi-do

Sponsors (2)

Lead Sponsor	Collaborator
Seoul National University Hospital	Korea Advanced Institute of Science and Technology

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Accuracy of "CPstethoscope" in interpretation of heart sounds	specificity, sensitivity, negative predictive value, positive predictive value	0