What to Expect
What is MRI?
Magnetic Resonance Imaging (MRI) uses magnetic fields and radio waves to examine internal structures of the body. The procedure is non-invasive and completely harmless. No ionizing radiation (such as X-rays) or radio-active materials are used during the study. MRI is particularly useful for imaging soft tissue such as the brain in high detail. It is also capable of measuring certain physiological changes associated with brain function.
The powerful magnetic field that makes MRI work necessitates several safety measures: if you wear a pacemaker, infusion pump, certain metallic clips, heart valves or orthopedic prosthesis, these must be brought to the attention of the MRI Technologist. Before the examination, all metal objects including credit cards and watches must be removed.
What can I expect during a scan/examination?
An MRI scan requires that you lie on your back with your head in a "tunnel," which is very similar to a CT scanner. The tunnel is open on both ends and is well lit and ventilated. The examination will take about 45 minutes and will be accompanied by a series of loud knocking sounds. There are no moving parts within the scanner, and the knocking sounds occur due to vibration of the machine when it alters the magnetic fields.
During pauses in scanning, you will be in intercom contact with the MRI Technologist, who will also be able to see you at all times. You will also hold a buzzer to alert the MRI Technologist in case of discomfort during the scanning.
In some instances, the intravenous administration of contrast agent is also necessary, but you will be notified in advance about this. Finally, it is important that you do not move at any stage during the examination as this makes the images blurry.
When will I receive my results?
Please note that the images from clinical patients are sent directly to the hospital informatics system to be read by a radiologist and from there the result is transmitted to your doctor, typically within a week 鈥� 10 days.
Do you use my scans for research or keep them on file?
SCAI does not store or use data from clinical scans for any type of research and the images are deleted from our scanner soon after they are confirmed to have arrived with the hospital informatics system.