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Completed

NCT Number: NCT03273803

Cardiac Auscultation Using Smartphones

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.

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Key information

Conditions

Cardiovascular Physiological Phenomena

Study type

Observational

Primary location

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, 463707, South Korea

About this study

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).

Who can participate

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Heart sound recording using smartphone application

Diagnostic Test

Heart sound recording and analysis using android smartphones (Samsung Galaxy S5, Galaxy S6, and LG G3)

Primary outcomes

  1. Accuracy of "CPstethoscope" in interpretation of heart sounds

    specificity, sensitivity, negative predictive value, positive predictive value

Sponsors and collaborators

Lead sponsor

Seoul National University Hospital

Other

Collaborators

  • Korea Advanced Institute of Science and Technology

Registry information

Official study title

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

Important dates

Study start
2016
Primary completion
2016
Study completion
2017
First posted
Sep 6, 2017
Registry last updated
Sep 8, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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