Biliary stents MRI safety

The patient should not be exposed to a magnetic field. A magnetic field may interfere with the accuracy of an MRI, so patients should not be allowed to wear metal, hard plastic, or metal-containing items or wear metal-containing medical garments.

Stents are not a magnetic resonance imaging (MRI) contrast medium.

How to prepare for a stent MRI?

You can eat and drink normally unless your doctor has told you otherwise.

How to get ready for a stent MRI?

You may feel some discomfort when lying still for a long time, but this should pass soon.

You may be asked to empty your bladder before the MRI.

A stent may be put in the patient’s bile duct during the MRI. Your doctor or nurse will discuss the procedure with you.

You can take your usual medications for fever, heartburn, and pain.

What to expect from a stent MRI?

Patients who have a stent in their bile duct will need to have the stent removed before the MRI.

A stent is put into the patient’s bile duct during the MRI.

A doctor or nurse will explain how the stent is put in and then remove it.

You will need to lie still during the MRI.

You will not be able to eat or drink after the stent is removed.

The stent is not visible on the MRI scan.

You will need to lie still during the test and will be able to breathe normally.

The length of time it takes to complete the test will depend on the type of MRI machine used.

The MRI staff will explain what to expect in terms of the time needed for the scan to be complete.

A stent MRI uses a different magnetic field strength. The image quality may be different.

You should not be exposed to a magnetic field during a stent MRI.

What are the risks?

Risks of a stent MRI scan include:

  • A reaction to the contrast used in the scan
  • An allergic reaction to the contrast
  • An allergic reaction to iodine
  • A reaction to the magnetic field
  • A reaction that causes an allergic reaction
  • Reactions to medicine

What are the benefits?

If a stent is put into a patient’s bile duct during an MRI, it will not be visible.

The aim of this procedure is to ensure that a stent is in the correct place and that it is not blocking the drainage of bile.

The information from the scan may help your doctor decide if you need another stent.

This procedure can also be used to check if a stent has been placed in the wrong place.

How to store a stent MRI scan?

Stent MRI scans cannot be stored for longer than 1 month.

It is important to keep the stent MRI scan as small as possible. The stent MRI scan should fit in one of the following boxes:

  • The stent image is very clear
  • The stent image is clear but the stent itself is very small
  • The stent image is clear but the stent is bigger than the box

What happens after a stent MRI scan?

The stent should be removed after the scan.

You will be able to eat and drink normally.

You should not apply any makeup to your face or apply any creams, gels, or lotions to any part of your body. These products can block the stent.

You may not be able to drive for a day or two after the stent is removed, but this will depend on how long the stent is in place and where the stent is placed.

You should not be exposed to any magnetic or radiofrequency fields for a day or two following the scan.

You will not be able to have MRI scans or hold anything that will cause the metal to shine on the scan.

If you have to have an MRI, you may be given special clothing to wear.

You should not have any metal jewelry or a pacemaker without your doctor’s approval if you have a stent in your bile duct.

What happens during a stent MRI?

The stent will be put into the patient’s bile duct during the scan.

You will not be allowed to put on a gown or have anything on your body during the scan.

The stent will be put in for about 30 minutes.

A doctor or nurse will remove the stent.

You will be able to have a drink or a meal after the scan.

You will need to lie still for a few minutes after the scan.

The person taking the scan will give you instructions about the type of food and drink that you should drink.

You can take your usual medication for fever, heartburn, and pain.

What is the best way to store a stent MRI scan?

The stent should be stored as follows:

  • Keep it in the box.
  • Keep it in the fridge.
  • Keep it in a cool, dry place.
  • Store it in a plastic bag.

When the stent is removed, it should be placed in a plastic bag and kept in the fridge.

You should also keep the stent in the fridge for at least 30 minutes after it is removed from the patient’s body.

The stent should not be exposed to direct heat or cold for a long time.

How soon will I get a report?

The doctor will send a report to your GP within 1 to 2 days.

The doctor will take photographs of the stent and send this to the radiologist.

The radiologist will send a report to your GP within 2 to 3 days.

The radiologist will send a report to the patient’s GP within 4 to 7 days.

What do I need to do after the scan?

You should keep the stent in the fridge for at least 30 minutes after it is removed.

You should keep the stent in the fridge for at least 30 minutes after it is removed from the patient’s body.

Finally

The doctor will give you written instructions about how to care for your stent.

You can get a copy of these instructions from your doctor.

If your stent is no longer keeping your bile duct open or if you have any problems with the stent, your doctor will let you know.

Images by Freepik

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