Similar to x-rays, an MRI, Magnetic Resonance Imaging, is a way of looking at tissues of the body to see if there are any visible injuries not directly seen on x-ray or on an examination. The nice thing about MRI is that it can see many tissues and bodily structures which are invisible on an X-ray.
Sometimes an MRI is necessary and sometimes it is not. This is determined by your history and the doctor's examination of your injury. If the doctor feels that the MRI is medically necessary, then he/she will recommend it to you. In many cases, MRI is the only way a doctor can objectively document your injury. Tears in ligaments, ruptures or bulges of the intervertebral discs of the spine can only be seen on an MRI.
Can an MRI only be performed on the neck or the back? No. MRI is very useful for evaluating injuries to the shoulders, knees, wrists and ankles as well. In fact, after the initial 48 to 72 hours following a head injury has elapsed, MRI is the preferred imaging to rule out such dangers as subdural hematomas, which can be life threatening.
Another nice thing about MRI is that the MRI doesn't produce harmful radiation. As far as is known, there are no ill effects of an MRI, although, it is still not used on pregnant women except in the second or third trimesters and then, only with the permission of the patient's pregnancy doctor.
Accident and Injury's MRI is also an open MRI and thus is less confining.
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