During the MRI study, the technologist performing your test will be able to watch you from the scanning room and via camera. Several sets of images are usually needed, each set taking two to five minutes, depending on the areas being examined. Most tests usually take 30 to 60 minutes, not including registration and discharge time.
Small devices, called coils, may be placed around the head, knee, foot, or other areas to be studied. These devices help send and receive the radio waves and improve the quality of the images.
Procedure
During the MRI study, the technologist performing your test will be able to watch you from the scanning room and via camera. Several sets of images are usually needed, each set taking two to five minutes, depending on the areas being examined. Most tests usually take 30 to 60 minutes, not including registration and discharge time. Restrictions:
- The strong magnetic fields created during an MRI can interfere with certain implants, particularly pacemakers. People with cardiac pacemakers, ICD's, neurostimulators, cochlear implants, SHOULD NOT have an MRI or enter an MRI area.
- Before having an MRI, sheet metal workers or any other person that may have been exposed to small metal fragments (face and eye area) should have x-rays of the orbital area to check for metal.
- Because of the strong magnetic field, certain metals objects are not allowed into the MRI room such as pocketknives, lighters, cell phones, scissors, hair pins, watches, credit cards and hearing aids. If you have questions regarding items please ask the technologist.
You will be asked to sign a screening MRI form that says you do not have any of those items in your possession or implanted in your body. We will also ask you about surgeries.
Preparations
Please bring your MRI prescription and a list of any allergies you may have, as well as a list of medications you are taking. If you need an MRCP you must not take any food or beverage by mouth ("nothing per mouth"-NPO) for four hours prior to the test. Some MRI studies may require an injection of MRI contrast (Gadolinium). An MRI exam does not cause pain. However, some people may become anxious when inside the scanner. If you have difficulty lying still or are very anxious, you may need a mild sedative, which should be prescribed by your doctor and taken as directed before the study. Excessive movement can blur MRI images so it is important that you remain still for the study. There is no recovery time, unless sedation was necessary. Patients who receive sedation should arrange for someone to take them home from the hospital. To learn about Shore and Advanced Radiology Solutions, or to schedule your appointment, call 609-653-4600.
