There are normally at least 3 pages of paperwork for the patient to complete upon arrival. These pages can be downloaded and filled out before you arrive, to help minimize your time at MDR. The appointment you are given by your Physician is actually 15 minutes prior to the actual time of your appointment, so that we can process your paperwork.
Preparation For Scan
When the technologist is ready for you, you may be asked to change into a gown. This depends on which part of the body is being scanned, and what you are wearing. The technologist will then briefly describe what you are about to go through. The dressing booth will be your “on deck” area until the room is available for you.
Your MRI Scan
You will lay on a table, most normally on your back. Depending on what part of your body is being scanned, you will go inside the MRI scanner either head first or feet first. When the table is in position, you will be offered earplugs or headphones (with radio). The ears must be protected from the loud jackhammer type noise that the MRI scanner will make as the pictures are being obtained.
The table will then take you inside the MRI scanner, an elongated tunnel-like machine. Once in position, you will lay there, and do your best to hold perfectly still as the scanner obtains the images required. The system will scan you in a 3 to 10 series of scans. Each scan will take from 1-8 minutes. Your Technologist will stay in contact with you throughout the process via a speaker, or through the headphones. He/she shall inform you of the progress, and the amount of time needed to acquire the next series of scans, and how long until the entire exam is over.
When your scan is complete, you will be let down off the table, and excused. Depending on your Doctor’s orders, you may be asked to wait, and take a CD along with you, for your doctor’s viewing at your next appointment. Most of the time, there will be no need to wait at all. The scan will be diagnosed by our Radiologist, and that report will be called, faxed, or mailed within 24 hours.
How To Prepare For Your Scan
To minimize the chances of having to change into a gown, please note the following:
- Wear clothes without metal zippers, buttons, or decorations, such as sweat pants, and pull over shirts
- Certain exams require the bra to be removed
- Certain exams require certain jewelry to be removed, depending on its proximity to the part of the body being scanned. Watches must ALWAYS be removed.
- If you feel you are claustrophobic, you may have a family member or friend stay inside the scan room during your test, as long as they have no harmful metallic objects implanted inside their body.
- Make sure to check your insurance coverage of an MRI scan.
Who May Not Have An MRI Scan
- Patients with aneurysm clips inside the HEAD
- Patients with implanted neurostimulators
- Patients with cardiac pacemakers
- Patients with some cochlear (ear) implants
- Patients with some cardiac valves
- Women in their 1st trimester of pregnancy, unless it’s a dire emergency
- Patients with metallic objects inside the eye
- There are many other items too numerous to list here that may not be placed within the bore of the magnet.
- Patients with cardiac stents implanted and/or other recent surgeries may be asked to wait a period of 3 months AFTER their surgery to go inside the MRI scanner.
- If you have any stage of renal disease please let us know.
- Some patients may need an injection in the middle of the test. This will be decided by your doctor and/or radiologist.
- Unless otherwise advised by your Doctor, there is NO reason not to eat or drink before your MRI scan. IF you are having your abdomen, or pelvis scanned, you may be asked to refrain from eating or drinking anything for a specified amount of time before your appointment.
- Please, make certain you are aware of how the scan will be paid for, and check the rules of your insurance company so that you are in compliance, and are aware of any co-payment that needs to be made.
- If your Doctor has medication prescribed for your MRI scan, make sure you bring someone with you, that is capable of driving you home. If there is no one to drive you home, you will be required to stay at that MDR location until the FULL effect of the medication has worn off, possibly as long as 6 hours.
Screening Protocol for Gadolinium Contrast
1) Screening for GFR will be done for patients with any of the following risk factors:
- Patients with history of renal disorder including acute renal failure and hepatorenal syndrome.
- Patients currently on dialysis (peritoneal dialysis and hemodialysis) are excluded from requiring renal function tests.
- Patients with history of diabetes mellitus.
- Patients with history of vascular disease
- Taking medication for high blood pressure
- Patients >/= 60 years of age.
- *Severe liver disease
- Recent vascular surgery including renal or liver transplantation, arteriovenous graft or revision and acute venous thrombosis.
Lab data is valid for 60 days for outpatients and for 30 days for inpatients with stable medical status.
If lab information is not available and the patient is 60 years of age or older and no other risk factor(s) as above, default to the CKD 3b protocol, 1/2 dose for MRI and up to full dose for MRA.
2) Prohance will be available as a backup gadolinium agent for Multihance. Omniscan will be available for pediatric patients less than 2 years of age. (Of the five gadolinium agents, Multihance and Prohance appear to have the best safety profiles at the present time).
*overestimates GFR so use 40 ml/min/1.73 m2 as lower limit of CKD 3b in these patients.