Frequently asked questions

Does the MRI table have a weight and size limit?

Yes, the table weight limit is 400 lb. or 180 kg., with a maximum width restriction of 60 cm. For optimal images it is necessary for the area being examined to be within the magnets isocentre which is located directly in the centre of the scanner. For patient specific questions please contact our MRI bookings department.

Why is my whole body in the scanner if you are only scanning my head?

The area of the scanner that creates the images is located in the centre of the magnet and is called the isocentre. Therefore, in order to scan your head most of your upper body will be in the scanner. The same is true when imaging the spine and upper extremities.

Can you scan my entire body while I am in the MRI machine?

No. The MR scanner can scan almost any part of the body but each scan is limited to a specific area. It can take from 30-60 minutes to scan each area.

What is the difference between MRI and CT?

Both MRI and CT create cross-sectional images of the body. The main difference is that MRI uses a large magnet and radio waves to produce images where as a CT scanner uses ionizing radiation.

Will an MRI hurt?

No. Although there may be noise emitted from the MRI scanner during your test, there is no pain involved during the procedure.

What causes the noise in the MRI scanner?

The noise that the scanner creates is the electrical current rising within the wires of the gradient magnet. The current in the wires are opposing the main magnetic field; the stronger the field the louder the gradient noise.

How can I get a copy of my imaging results?

A radiologist, a doctor specifically trained to supervise and interpret radiology examinations, will analyze the images and send a signed report to your primary care or referring doctor, who will discuss the results with you.

Follow-up examinations may be necessary, and your doctor will explain the exact reason why another exam is requested. Sometimes a follow-up exam is done because a suspicious or questionable finding needs clarification with additional views or a special imaging technique. A follow-up examination may also be necessary so that any change in a known abnormality can be monitored over time. Follow-up examinations are sometimes the best way to see if treatment is working or if an abnormality is stable over time.