Having a cardiac CT scan

Computed tomography, or CT, takes X-ray images from different angles and builds detailed views inside the body. Cardiac means relating to the heart. A cardiac CT shows the heart and its blood vessels when the team needs more information. CT uses X-rays, a type of radiation. MRI uses a magnetic field instead. Ask why the expected benefit makes CT appropriate for your child.

CT is often quick, but your child still needs to keep still. Some children need a general anaesthetic to keep them unconscious during the scan. Staff may put a small tube, called a cannula, in a vein. They can use this to give contrast, which makes the pictures clearer. Sticky pads that record the heart’s signals may help time the pictures to the heartbeat.

The department will decide how to obtain useful images and explain preparation, safety checks and recovery. Tell staff about allergies, previous contrast reactions and your child’s health history.

Use the hospital’s instructions for the particular scan rather than assuming that all CT appointments are the same. Ask what you can do to help your child understand the room and equipment. Let staff know if lying flat or staying still is difficult. If an anaesthetic is planned, clarify transport home and who must stay with your child afterwards.

Keep a note of the reason for the scan and ask when its result will be discussed. The specialist needs to explain what the pictures mean for your child’s treatment.