Gadolinium (Dotarem®) Contrast Injection – Patient Information

What is gadolinium?

Gadolinium (Dotarem®) is a clear, colourless liquid that is used to make images clearer during an MRI scan, which helps with diagnosis.

A radiologist (a specialist doctor trained in studying scans and X-rays) will decide if you need gadolinium and a radiographer will discuss this with you when you come for your scan. You can also call and speak to a radiographer before your scan on 0207 467 4317.

How is it given?

Gadolinium is injected into one of your veins via a needle or a cannula (a soft, thin plastic tube) during your scan.

The cannula is inserted through your skin into a vein using a needle. Once the cannula is in place the needle is removed, leaving the small, thin plastic tube in the blood vessel. This should be comfortable and will only be in place until your scan is finished.

Asking for your consent

The radiographer will ask you if you are happy for the scan to go ahead (verbal consent) and may only involve the radiographer checking that you are booked for the correct scan. If you do not wish to have the scan or are undecided, please tell the radiographer. It is your decision and you can change your mind at any time. Please remember to ask the radiographer any questions you have at any time.

Are there any side effects?

Gadolinium is not suitable for everybody. The radiographer or radiologist will decide if it is appropriate for you.

In people who have severely reduced kidney function or hepatorenal syndrome (a condition involving reduced function of the liver and kidneys), gadolinium should only be used with radiologist approval. This group of patients cannot excrete gadolinium through urine and the retained gadolinium may cause problems.

It is important that you tell the radiographer before your scan if you have any history of kidney problems. Under the Royal College of Radiologist guidelines, patients 65 or over will have their kidney function tested on the day, unless consent is not given.

Please also let us know if you have had a previous allergic reaction to a contrast agent.

Gadolinium may cause side effects in some people but these are usually mild and short lasting. Some of the more common side effects include:
• Pain at the injection site
• Nausea
• Vomiting
• Itching
• Rash
• Headache
• Parasthesia (abnormal skin sensation, such as prickling, burning or tingling).

If you have any concerns about side effects, please speak to the staff caring for you.

Occasionally the injection may leak out from the vein to the tissues under the skin – this is known as extravasation. If this happens, you will experience a stinging sensation where the contrast has gone into the tissue and it can be painful. If you would like more information about this please ask a member of staff for our leaflet, Contrast injection leak guidance (extravasation).

Allergic reactions to gadolinium contrast agents are very uncommon but do occur. Most occur during the injection or within the first hour following administration; however some can occur up to several days later. If a reaction was to occur during your scan, the hospital has the team and the medicine to help with this.

Serious allergic reactions are rare, however please seek immediate medical attention if you have any of the following after leaving the hospital:
• Swelling of the face, mouth, hands, feet or throat
• Difficulty breathing or swallowing
• Fainting
• Coughing/wheezing/sneezing
• Eye irritation
• Rash/hives/itchy red skin

If a reaction occurs after you have left the hospital we would advise you to attend an A&E department.

Contact us

Please contact the Imaging team about any general concerns on 0207 467 4317. However, if you experience any symptoms of concern please contact your GP or go to your local Emergency Department (A&E).

Your comments and concerns

If you have any questions or concerns about your medicines, please speak to the staff caring for you. For support or advice please speak to your consultant or the Imaging department on 0207 467 4317.

Language and accessible support services

If you need an interpreter or information about your care in a different language or format, please get in touch.