Zero Coronary Artery Calcification: A Promising Value in Acute Chest Pain Evaluation

Area of Science:

• Cardiology
• Radiology
• Emergency Medicine

Background:

• Chest pain is a frequent emergency department complaint, necessitating rapid, accurate diagnosis.
• Life-threatening conditions like acute coronary syndrome require timely assessment.
• Current guidelines suggest clinical decision pathways and functional tests or CT angiography for intermediate-risk patients.

Purpose of the Study:

• To review the utility and limitations of coronary artery calcification (CAC) Zero in evaluating acute chest pain.
• To highlight CAC Zero's accuracy and prognostic value in acute settings.
• To discuss the application of CAC Zero in emergency department chest pain protocols.

Main Methods:

• Review of recent evidence on coronary artery calcification (CAC) detection using non-gated, non-contrasted cardiac CT.
• Analysis of CAC Zero's performance, including negative predictive value for coronary artery disease (CAD).
• Evaluation of prognostic implications of CAC Zero in patients presenting with acute chest pain.

Main Results:

• Coronary artery calcification (CAC) Zero demonstrates high accuracy, with a negative predictive value of approximately 98% for coronary artery disease (CAD).
• Absence of CAC (CAC Zero) predicts excellent short- and intermediate-term prognoses in acute chest pain patients.
• Non-gated, non-contrasted cardiac CT for CAC detection is a fast, simple, and cost-effective assessment tool.

Conclusions:

• Coronary artery calcification (CAC) Zero is a valuable tool for ruling out coronary artery disease in acute chest pain presentations.
• CAC Zero offers a rapid and accurate assessment, complementing existing diagnostic strategies.
• Caution is advised when interpreting CAC Zero in younger populations due to potential noncalcified plaques.