Having a cardiac MRI

MRI stands for magnetic resonance imaging. It uses a strong magnet and radio waves to make detailed pictures. Cardiac means relating to the heart. A cardiac MRI shows the heart and nearby blood vessels. These can help the team plan treatment or future checks. It does not use X-rays. The team chooses it when it can provide information that other tests have not supplied.

The scanner has a tunnel-shaped opening and makes loud sounds. Keeping still matters. Some children can have the scan awake. Others need a general anaesthetic, medicines that keep them unconscious during the scan. Tell staff about implanted devices, previous operations and any metal in the body, even if you think they already know. The imaging team checks whether devices are suitable for MRI.

Sometimes staff give contrast, a substance that makes parts of the scan clearer. They give it through a cannula, a small tube in a vein. The team will explain if your child needs this.

Ask what the scanner looks and sounds like and whether a preparation visit or child-friendly explanation is available. Tell staff if small spaces frighten your child, or if noise or touch is difficult. Explain how your child prefers to communicate. Check what ear protection and entertainment the department can offer; facilities differ.

Follow the appointment’s instructions for food, drink and medicines, especially if anaesthesia is planned. Ask how recovery and going home will work, and who will compare the results with previous scans. A reassuring preparation conversation can be useful even for a teenager who has had scans before.