Cardiac Auscultation Using Smartphones

September 5, 2017 updated by: Jung-Won Suh, Seoul National University Hospital

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

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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).

Study Type

Observational

Enrollment (Actual)

46

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
    • Gyeonggi-do
      • Seongnam, Gyeonggi-do, Korea, Republic of, 463707
        • Seoul National University Bundang Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

Men and women were evenly enrolled, and the median age was 65.5 years.

Twenty subjects (43.5%) had systolic murmur, 20 (43.5%) normal heart sound, 5 (10.9%) diastolic murmur, and 1 (2.2%) S4.

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Accuracy of "CPstethoscope" in interpretation of heart sounds
specificity, sensitivity, negative predictive value, positive predictive value

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Seoul National University Hospital

Collaborators

Korea Advanced Institute of Science and Technology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 24, 2016

Primary Completion (Actual)

October 31, 2016

Study Completion (Actual)

June 8, 2017

Study Registration Dates

First Submitted

September 3, 2017

First Submitted That Met QC Criteria

September 3, 2017

First Posted (Actual)

September 6, 2017

Study Record Updates

Last Update Posted (Actual)

September 8, 2017

Last Update Submitted That Met QC Criteria

September 5, 2017

Last Verified

September 1, 2017

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • B-1609-361-303

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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