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Cardiac Auscultation Using Smartphones

2017-09-06 22:23:21 | BioPortfolio

Summary

We 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).

Study Design

Conditions

Cardiovascular Physiological Phenomena

Intervention

Heart sound recording using smartphone application

Location

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

Status

Completed

Source

Seoul National University Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2017-09-06T22:23:21-0400

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Medical and Biotech [MESH] Definitions

Recording of visual and sometimes sound signals on magnetic tape.

Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts.

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Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.

Graphic registration of the heart sounds picked up as vibrations and transformed by a piezoelectric crystal microphone into a varying electrical output according to the stresses imposed by the sound waves. The electrical output is amplified by a stethograph amplifier and recorded by a device incorporated into the electrocardiograph or by a multichannel recording machine.

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