Magnetic Resonance Imaging (MRI)

What is Magnetic Resonance Imaging (MRI)?

An MR or MRI scan is an imaging technique that produces cross-sectional images, like slices, of your head or body that are more detailed than those produced by conventional X-ray exams. Instead of radiation, MRI uses a strong magnetic field to acquire the images.

Contraindications

Due to the magnetic field, we cannot scan you if you have a pacemaker, defibrillator or other implanted electronic devices.

We may not be able to scan you if you have metal in your body such as shrapnel or if you have a bullet injury or if you are a welder.

If you have any questions, please call the MRI department directly at the Hoag facility where you are schedule to receive your exam. Click here for a list of locations.

What do I need to do to prepare for my MR exam at Hoag?

If you are scheduled for an MRA of the abdomen, you should have nothing to eat or drink 4 hours before your scheduled exam time.

Please dress in loose, comfortable two-piece clothing. No belts, buttons or zippers.

Please call 800/309-XRAY (9729) for any additional questions or concerns.

What should I bring with me when I arrive at Hoag?

Many insurance providers require prior authorization. Please verify with your ordering physician that, if required, an authorization has been obtained, to avoid any unexpected costs, delays or cancellations.

Bring your physician's written order, insurance card and proof of pre-authorization (if applicable) with you to your appointment.

Please bring a current list of your medications, including herbal and vitamin supplements, as well as the current dose of these medications. If possible, click on PATIENT HOME MEDICATION LIST, print and complete this document prior to coming in for your scheduled appointment.

In addition, please print and complete the MRI OUTPATIENT QUESTIONNAIRE and the MRI SAFETY CHECKLIST prior to coming in for your appointment.

If you have a prescription for laboratory (blood chemistry panel or serum creatinine), it should be obtained at least 1-2 days before your MR scan. If you have diabetes, or are age 65 or older, this lab work should be obtained within the last 90 days. Please call your physician if you have questions.

Also, please bring any prior exams pertaining to your procedure that were not done at a Hoag or Newport Imaging facility.

MR Procedures Specific Information

To find out more about your imaging study and what to expect, click on any of the procedures listed below. You will be directed to RadiologyInfo™, a public information Website established by the Radiological Society of North America (RSNA).

The only preparation required at Hoag for MR body scans is that patients should have nothing to eat or drink 4 hours before their scheduled exam time. Please disregard any other instructions presented on the Weblink provided.