Cardiac Auscultation Using Smartphones

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

46 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-08-24

Study Completion Date

2017-06-08

Brief Summary

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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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Detailed Description

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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).

Conditions

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Cardiovascular Physiological Phenomena

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Interventions

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Heart sound recording using smartphone application

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

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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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.