Heart Scan Procedure

A heart scan, also known as a cardiac CT scan or coronary calcium scan, is a non-invasive medical imaging test used to evaluate the health of the heart and its blood vessels.

Purpose

The primary purpose of a heart scan is to:

  • Detect and measure the amount of calcium in the coronary arteries, which can indicate the presence of plaque buildup and potential blockages.
  • Assess the risk of heart disease and cardiovascular events, such as heart attacks.
  • Evaluate the effectiveness of treatments for heart disease.

Types of Heart Scans

There are several types of heart scans, including:

  • Coronary Calcium Scan: uses computed tomography (CT) to detect and measure calcium in the coronary arteries.
  • Coronary CT Angiogram: uses CT to produce detailed images of the coronary arteries and detect any blockages or narrowing.
  • Cardiac MRI: uses magnetic resonance imaging (MRI) to produce detailed images of the heart and its blood vessels.

Procedure

The procedure for a heart scan typically involves:

  • Lying on a table that slides into the CT scanner or MRI machine.
  • Removing any metal objects, such as jewelry or glasses.
  • Wearing a gown and lying still during the scan.
  • The scan taking around 10-30 minutes to complete.

Risks and Complications

Risks and complications associated with heart scans include:

  • Allergic reactions to contrast dyes used in some scans.
  • Radiation exposure from CT scans.
  • Claustrophobia or anxiety during the scan.

Results and Follow-up

The results of a heart scan are typically provided by a radiologist or cardiologist, who will:

  • Interpret the images and provide a report on any findings.
  • Discuss the results with the patient and recommend any further testing or treatment.

Preparation

To prepare for a heart scan, patients should:

  • Avoid eating or drinking for several hours before the scan.
  • Wear comfortable clothing and avoid wearing metal objects.
  • Inform their doctor of any medical conditions or allergies.

Article last updated on: 15th June 2025.
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