Contrast-Enhanced Coronary Computed Tomography Angiography for Heart and Coronary Artery Evaluation
This contrast-enhanced computed tomography exam uses intravenous iodine-based contrast to generate high-resolution cross-sectional images of the heart, its four chambers, cardiac valves, coronary arteries, and associated cardiac veins and lymphatic vessels. The imaging protocol captures dynamic and static views of the full cardiac cardiovascular system to identify atherosclerotic plaque buildup, partial or complete coronary artery blockages, congenital heart malformations, or abnormalities in cardiac valve function without the need for invasive catheter-based procedures. Minimal radiation exposure is used during the 15-minute scan to limit patient dose while delivering the detail required to evaluate both arterial supply and venous drainage pathways of the heart.
This 15-minute low-dose contrast-enhanced coronary CTA non-invasively visualizes the heart, coronary arteries, and full cardiac cardiovascular system to diagnose blockages, plaque accumulation, and structural heart abnormalities.
Key facts at a glance
- Modality
- ct
- Body part
- chest · cardiac
- Contrast
- iodinated
- Contrast route
- iv
- Ionizing radiation
- true
- Radiation dose
- 7
- Duration (min)
- 15
- Preparation
- fasting-4h
- Pregnancy safe
- false
- Pediatric safe
- true
- Breastfeeding safe
- true
- Claustrophobia risk
- low
- Metal implant safe
- safe
- Sedation
- none
- LOINC
- 79092-2
- SNOMED
- 419545005
- Result turnaround
- 24-48h
- Availability
- routine
- Setting
- any
- Cost tier
- high
Understanding CT Scan of heart
Computed Tomography provides detailed visualization of heart. Contrast material highlights vascular structures and improves tissue differentiation. The procedure uses controlled radiation to create precise images with excellent anatomical detail.
Clinical Indications
This evaluation helps detect arterial blockages, identify aneurysms, assess blood flow patterns, and guide vascular interventions.
What to Expect
The procedure typically takes 15 minutes. You may experience a brief warm sensation as contrast is administered. The examination is painless and non-invasive.
How to read the report
- Results reviewed by board-certified radiologist.
- Report transmitted to referring physician.
What Is This Procedure?
This ct scan evaluates cardiac, specifically heart. Uses contrast dye to enhance visualization of internal structures. Uses controlled radiation to create detailed images.
What Does It Show?
Detailed images of heart and coronary arteries. Part of the cardiovascular system.
Common Uses
This exam is commonly used to detect arterial blockages, evaluate blood flow, identify aneurysms, and assess vascular disease.
What to Expect
The procedure takes approximately 15 minutes. You may feel a warm sensation if contrast is used.
Severe pain at procedure site
urgentWorsening severe pain with fever or other symptoms. Go to urgent care or ER.
Mild symptoms after procedure
promptMild discomfort or symptoms that don't improve. Contact your doctor.
Severe allergic reaction (anaphylaxis)
emergencyDifficulty breathing, swelling, rapid heartbeat after contrast. Call 911 immediately.
Call 911 immediately
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy