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Can Smartphones Listen to Your Heart? A Performance Study on Detecting Inborn Heart Diseases in Your Heart Sounds

Smartphone-Based Use of Phonocardiography for Detection of Congenital Heart Disease: Diagnostic Performance Study

Status
Enrolling by invitation
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07376785
Acronym
AUSC-CHD
Enrollment
220
Registered
2026-01-29
Start date
2026-05-26
Completion date
2026-11-01
Last updated
2026-06-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Congenital Heart Disease (CHD)

Keywords

Smartphone, Mobile Applications, Telemedicine, Heart Defects, Congenital, Phonocardiography, Heart Sounds, Heart Murmurs, Heart Auscultation

Brief summary

This observational study aims to assess the performance of the software called ausculto™. ausculto™ is a collection of computer algorithms that intend to analyse heart sounds recorded from the built-in microphone of a smartphone for abnormal sounds. Participants will have their heart sounds recorded during their normal attendance at the hospitals after consenting to participate in this study. Researchers will manually annotate the recorded heart sounds to create a database for use in future training and testing of artificial intelligence (AI) intended for medical uses.

Interventions

DIAGNOSTIC_TESTComputer algorithms

Collection of lightweight computer algorithms called ausculto™ that is designed to perform real-time heart sound analysis to detect heart murmur.

Sponsors

The University of Hong Kong
Lead SponsorOTHER
Laboratory of Data Discovery for Health
CollaboratorINDIV

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
6 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Age: ≥ 6 years * Have undergone echocardiography within 3 years at their normal non-research hospital attendance

Exclusion criteria

* Implanted active medical devices in the torso, such as pacemakers and defibrillators * Have purely non-congenital valvular heart disease

Design outcomes

Primary

MeasureTime frameDescription
Differentiation of Murmurs Associated with Congenital Heart Disease from Normal Heart Sounds and Innocent Murmurs in Heart Sound RecordingsDay 0Identification of murmurs associated with congenital heart disease from normal heart sounds and innocent murmurs in recorded heart sounds (phonocardiogram \[PCG\]), measured in the form of sensitivity and specificity.

Secondary

MeasureTime frameDescription
Differentiation of Murmurs Associated with Congenital Heart Disease from Normal Heart Sounds and Innocent Murmurs in Heart Sound RecordingsDay 0Identification of murmurs associated with congenital heart disease from normal heart sounds and innocent murmurs in recorded heart sounds (phonocardiogram \[PCG\]), measured in the form of positive and negative predictive value and accuracy.
Number of Adverse Events Reported by Participants or Child Participants' Parent/Legal Guardian During and at the End of Heart Sound Recording That are Determined to be Caused by This StudyDay 0

Countries

Hong Kong

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 24, 2026