Related Experiment Video
Updated: Jan 13, 2026

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Cardiologist user experience of artificial intelligence-based quantitative coronary angiography
Ohchul Kwon1, Hyuck-Jun Yoon2, Jung-Hee Lee3
1Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea.
Artificial intelligence-assisted quantitative coronary angiography (AI-QCA) offers an automated, objective assessment of coronary artery stenosis. Cardiologists found AI-QCA feasible and helpful in the cath lab, with acceptable user experience and minimal time investment.
Area of Science:
- Cardiology
- Medical Imaging
- Artificial Intelligence
Background:
- Artificial intelligence-assisted quantitative coronary angiography (AI-QCA) automates coronary artery stenosis assessment.
- Previous studies confirmed AI-QCA accuracy against manual QCA and intravascular ultrasound.
Purpose of the Study:
- To evaluate cardiologists' experience analyzing coronary lesions using AI-QCA.
- To assess the feasibility and user experience of AI-QCA in a clinical setting.
Main Methods:
- Ten interventional cardiologists analyzed 180 patient angiograms using AI-QCA.
- Correlations between manual QCA and AI-QCA measurements were assessed.
- User experience was evaluated using the System Usability Scale (SUS).
Main Results:
- AI-QCA demonstrated marginal high acceptability (average SUS score 66.7).
- AI-QCA analysis time was significantly lower (1.5±0.9 s) compared to manual QCA (88.1±35.5 s).
- Key angiographic variables showed moderate-to-strong correlations between AI-QCA and manual QCA (e.g., RD R=0.74).
Conclusions:
- AI-QCA offers an acceptable user experience with minimal human intervention and time.
- AI-QCA is feasible and potentially beneficial for coronary angiography and intervention in the cath lab.
More Related Videos
06:16Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
Published on: August 9, 2024
06:57Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection
Published on: September 22, 2023
Related Concept Videos
Imaging Studies for Cardiovascular System V: CT
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Coronary Artery Disease V: Interprofessional Care
Cardiac Catheterization I: Pre-Procedure Overview
Acute Coronary Syndrome III: Diagnostic Studies