Understanding Right Coronary Artery Calcium (Agatston Score): Normal vs Optimal Ranges

?What is Right Coronary Artery Calcium (Agatston Score)?

The right coronary artery (RCA) calcium Agatston score measures the amount of calcified plaque specifically in the right coronary artery using CT imaging, quantified in Agatston units. This is a component of coronary artery calcium (CAC) scoring, which assesses atherosclerotic burden and calcification in the coronary vessels. Higher scores in the RCA indicate greater calcium deposition and may suggest increased atherosclerotic disease in this vessel.

!Why It Matters

RCA calcium scoring can help identify subclinical coronary artery disease and stratify cardiovascular risk before symptoms occur. Elevated calcium in the RCA may suggest significant atherosclerotic plaque and could indicate increased risk of myocardial infarction or other coronary events. This measurement, along with total CAC score, helps guide preventive therapy decisions and lifestyle modifications.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• Chest pain or angina
• Shortness of breath during exertion
• Palpitations or irregular heartbeat
• Fatigue or reduced exercise tolerance
• Jaw, neck, or arm pain

How to Improve Your Levels

• 1Follow a heart-healthy diet low in saturated fats and sodium
• 2Engage in regular aerobic exercise (at least 150 minutes per week)
• 3Maintain a healthy body weight and waist circumference
• 4Manage blood pressure and cholesterol through medication if needed
• 5Quit smoking and avoid secondhand smoke exposure
• 6Reduce stress through meditation, yoga, or counselling

When to Test

Coronary artery calcium scoring is typically recommended for asymptomatic adults aged 40–75 years at intermediate cardiovascular risk, or for those with a family history of premature coronary disease. It may also be ordered when evaluating atypical chest symptoms or assessing overall cardiovascular risk.

Related Biomarkers