Diagnostic performance of coronary computed tomography (CT) angiography without electrocardiographic (ECG)-gating: comparison with invasive coronary angiography

Key Points

• High diagnostic concordance achieved with ECG-less coronary computed tomography angiography for obstructive CAD, indicating its effectiveness.
• Specificity and negative predictive value were found excellent across different analysis levels, with significant implications for emergency care.
• This observational analysis compares diagnostic performance against invasive coronary angiography in various clinical scenarios, including arrhythmic patients.
• Clinical utility is highlighted in emergency settings, suggesting ECG-less techniques may reduce dependency on β-blockers and streamline workflows.