Depending on the type of MRI, some exams can take up to an hour to complete but the majority of exams usually take about 30 minutes.
No. MRI uses magnetic and radio waves, not radiation.
Are there devices or metal objects that cannot be brought into the scanner?
Yes, there are several devises and objects that cannot be brought near the scanner for your protection. Please tell you tech abut any and all devises or metal objects that you have.
Why does an MRI machine make such a lound noise?
The loud noise during a MRI exam is due to the electromagnetic coil switching on to produce magnetic waves. The current is switched on and off rapidly, which creates the images; thus, also creating a continual loud banging noise amplified by the enclosed space.
A tech will be right outside the room watching your exam through a glass window. You will be able to communicate with your tech the entire duration of the exam.
Does MRI affect medical appliances?
All metallic objects are potentially harmful in a magnetic field. Check with your doctor and/or your MRI tech if you have any brain, ear or eye implants, or if you have any other metal in your body.
If you are pregnant, consult with your doctor before having a MRI performed.
If the MRI is routine, your doctor should have the results within 48 hours.