Welcome to the Radiology Department
The Radiology Department may also be called the X-ray or Imaging Department. It is the facility in the hospital where radiological examinations are carried out using a variety of equipment.
Radiologists are the doctors who are specially trained to interpret the images and carry out more complex examinations. Radiologists are supported by Radiographers who are highly trained to carry out the examinations. You have been referred for an MRI scan. The results will go back to the clinic that referred you.
What is a MRI scan?
The MRI scanner is a circular tube which is open at both ends. MRI uses a very strong magnet to produce cross-sectional images of the body.
The magnet in the scanner collects information and sends it to the computer in the control room which displays your images.
The scanner is very noisy while it collects the images, and it is important you stay still so clear pictures can be taken.
Risks, alternatives, and benefits
MRI does not use any form of X-ray. MRI is now the alternative for some X-ray and operative procedures. The images produced by MRI are very detailed and show bones and soft tissue.
It may not be possible to have an MRI if you have a metal implanted device, this may include:
- Cardiac devices including pacemakers and defibrillators.
- Aneurysm clips.
- Metal fragments in your eyes.
- Implanted electronic stimulators.
- Implanted pumps.
Please let the MRI unit know as soon as possible if you have any implanted devices. The phone number is on your appointment letter.
Before your MRI scan, you will be asked some questions to check that you are safe to enter the scan room. People with dental fillings, bridges, joint replacements or stents can all be scanned if you have had them for at least 6 weeks. The Radiographers will need to be aware of these so they can optimise your scan.
Pregnancy
If you are pregnant at the time of your MRI scan, this should be discussed with the person referring you before attending the scan. If it is deemed necessary to still have your scan while you are pregnant, this will be discussed with the Radiologist and the appropriate safety precautions taken.
Claustrophobia
If you suffer from claustrophobia, we have experienced staff who can use a variety of techniques to help you through the scan. For severe claustrophobia, you may also be able to source sedatives from your GP however you will not be able to drive after taking these.
Contrast injections (dye)
Most MRI examinations do not require you to have an injection but in some situations, it may be deemed beneficial by the consultant Radiologist.
The contrast is injected into a vein and can help to give more information which can contribute to your diagnosis.
If you are having an arthrogram the contrast will be injected into the joint space.
MRI contrast is not the same as X-ray contrast.
Children
Children under 16 can be accompanied at all stages of the examination by an appropriate adult. Everyone coming into the scan room will be asked the safety questions about metal and implants, and be expected to change into appropriate clothing if required.
Please be aware that we are not able to supervise children while you have your scan.
What happens during the MRI scan?
- From reception you will be called through to the MRI preparation area.
- Please try to wear clothing without any metal. Please try to wear trousers with no metal fastenings or eyelets, tops and bras with no metal zips, patterns, clips or adjuster straps. If any of your clothing has metal on, it will need to be removed and a gown will be provided for you.
- A member of staff will go through the MRI safety questionnaire with you.
- You will be required to remove anything that is metal and removable, including jewellery, piercings, phone, watch, belt, wallet, and coin.
- It is not necessary to remove your wedding ring
- A team, possibly including a Radiologist, Radiographer and assistant will look after you and assist you into the scanner.
- They will assist you to lie down and make you comfortable. The couch top will then move you into the scanner.
- The Radiographer will ensure you are comfortable in the scanner before beginning your scan. You will be given a call bell if you need the Radiographer to come into the room.
- The scanner will make a series of loud noises as the images are being taken so you will be provided with headphones. Ear plugs can also be provided if required.
- You should keep very still throughout your MRI; this will ensure the images are good quality.
- The scan should not be painful and there are no side effects. You can continue as normal after your scan.
How long will it take?
You can be in the MRI department for between 20 minutes to 2 hours depending on your scan. Each area of the body takes approximately 20 minutes to scan.
Whilst we endeavour to ensure that you are seen at your appointment time sometimes emergencies may have to take priority. We ask for your patience and understanding should this occur, we will keep you informed of any delays.
How will I get the results?
You will not get any results at the time of your scan. A radiologist will report on your images and send the results to the doctor or clinic that requested the scan. You will receive the results from the clinician that requested your scan.
References
Royal College of Radiologists (RCR) 2001 Information for Adult Patients having an MRI Scan Available from: www.RCR. ac.uk [accessed April 2006].
Questions
Please do not hesitate to ask questions either before or after your scan. Contact details can be found on your appointment card.
© North Bristol NHS Trust. This edition published July 2024. Review due July 2027. NBT002009
