Overview Of Magnetic Resonance Imaging (MRI) Scans

Compared To Other Imaging Tests

Magnetic resonance imaging does not use the same mechanisms x-rays and computerized tomography scans use to produce images of the body's structures and organs. This difference means magnetic resonance imaging scans do not use any of the potentially harmful ionizing radiation used by a computerized tomography scan. However, magnetic resonance imaging does use magnets within the machine that can produce problems if certain patients do not prepare for the scan properly.

Another difference between magnetic resonance imaging and other diagnostic imaging techniques is that the MRI machine has a much smaller opening into which the patient can slide. Some patients who undergo magnetic resonance imaging may need to be lightly sedated due to feeling claustrophobic inside the machine. Magnetic resonance imaging scans usually take longer than the typical x-ray or computerized tomography scan. A doctor decides which medical imaging technique to use based on the medical reason for the scan, the amount of detail needed, and any factors that may make certain scans intolerable.

Discover the risks linked to magnetic resonance imaging next.