Perfusion MRI

Perfusion imaging is used as an adjunct to our routine MRI brain examination. Perfusion uses injected contrast (dye) to check the flow of blood to normal tissue and diseased tissue.

Exam preparation

A CDI representative will call you prior to your appointment to provide you specific instructions, and review health and insurance information.
Please bring to CDI previous imaging study results (MRI, CT, x-rays) such as reports, films or CD-Roms, if available.
Because of the magnetic field, you will be asked to wear metal-free clothing, or to change into a gown. You also will be asked to remove any metallic objects, such as jewelry, watches, and hair clips.
Inform your technologist of prior surgeries or metal implants, such as pacemakers or aneurysm clips.
Notify a member of CDI’s staff if your are nursing or if there is a chance you could be pregnant.
Please arrive 15 minutes early to verify your registration.

During the exam – what to expect

You will be given an I.V. in the hand or arm.
You lie on a cushioned table and an imaging device called a “coil” will be placed around your head.
Once comfortably positioned, the table will move into the magnet opening.
Non-iodinated contrast will be given to you via a power injector at the beginning of the perfusion sequence, which takes an additional 1 to 2 minutes longer than the typical MRI exam. You may feel a cooling sensation as the contrast is injected.
As images are acquired, you hear “knocking” sounds for several minutes at a time.
It is important to lie as still as possible during this part of the exam.

After the exam – what to expect

A radiologist who specializes in a specific area of the body will review your images (i.e., a neuroradiologist will review images of your brain).
The radiologist prepares a detailed diagnostic report to share with your doctor.
Your doctor will consider this information in context of your overall care, and will talk with you about the results.

If you have additional questions about your appointment or our services, check out our Frequently Asked Questions or contact your local CDI center.