Related Experiment Video
Updated: Feb 18, 2026

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
Smartphone ECG for evaluation of ST-segment elevation myocardial infarction (STEMI): Design of the ST LEUIS
Alejandro Barbagelata1, Charles F Bethea2, Harry W Severance3
1Catholic University, Buenos Aires, Argentina.
Insights
Smartphone ECG apps offer a new way to quickly diagnose ST-elevation myocardial infarction (STEMI). This study validated a 12-lead smartphone ECG app, showing its potential for faster STEMI diagnosis and treatment.
Area of Science:
- Cardiology
- Medical Technology
- Digital Health
Background:
- ST-elevation myocardial infarction (STEMI) requires rapid diagnosis and reperfusion for optimal outcomes.
- The 12-lead electrocardiogram (ECG) is crucial for STEMI diagnosis, but its availability can be a limitation.
- Smartphone-based ECG technology offers a potential solution to improve accessibility.
Purpose of the Study:
- To validate a smartphone ECG application for accurate STEMI detection.
- To assess the diagnostic utility of smartphone technology in chest pain patients.
- To support timely diagnosis and treatment of STEMI using mobile health tools.
Main Methods:
- The ST LEUIS study enrolled 300 patients across five institutions over 12 months.
- Patients presenting with chest pain underwent both smartphone ECG and standard 12-lead ECG.
- The study compared the accuracy of the smartphone ECG app against the gold standard 12-lead ECG for STEMI assessment.
Main Results:
- The study aimed to validate the accuracy of a 12-lead smartphone ECG app.
- Comparison was made against the established gold standard 12-lead ECG.
- Results will determine the app's effectiveness in identifying STEMI.
Conclusions:
- Smartphone ECG technology shows promise for improving STEMI diagnosis.
- This validation study supports the use of mobile health tools in emergency cardiology.
- Timely diagnosis via smartphone ECG can facilitate faster treatment decisions for STEMI patients.
Abstract:
In patients experiencing an ST-elevation myocardial infarction (STEMI), rapid diagnosis and immediate access to reperfusion therapy leads to optimal clinical outcomes. The rate-limiting step in STEMI diagnosis is the availability and performance of a 12-lead ECG. Recent technology has provided access to a reliable means of obtaining an ECG reading through a smartphone application (app) that works with an attachment providing all 12-leads of a standard ECG system. The ST LEUIS study was designed to validate the smartphone ECG app and its ability to accurately assess the presence or absence of STEMI in patients presenting with chest pain compared with the gold standard 12-lead ECG. We aimed to support the diagnostic utility of smartphone technology to provide a timely diagnosis and treatment of STEMI. The study will take place over 12months at five institutions. Approximately 60 patients will be enrolled per institution, for a total recruitment of 300 patients.
More Related Videos
18:11A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
Published on: December 28, 2012
10:17Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Related Concept Videos
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Acute Coronary Syndrome III: Diagnostic Studies
Holter Monitor: 24-Hour Monitoring
Acute Coronary Syndrome I: Introduction
Electrocardiogram Fundamentals
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
Dysrhythmias V: Evaluating Dysrhythmias