Magnetic Resonance Imaging
A magnetic resonance imaging scan is a technique performed by radiologists that involves using magnetism, radio waves and computers to produce detailed images of the body’s internal structures, including tissues, muscles, arteries, bones and unusual growths. A number of patients credit the MRI scan with the discovery of an existing medical condition they never knew about. For instance, one patient at www.medicinenet.com said she experienced numbness along one side of her body after giving birth to her baby and although the doctor thought it was nothing, a medical imaging test uncovered a very large arterial venous malformation in her brain. Another patient says she discovered her leg pain was not due to an inflamed sciatic nerve, as previously thought, but to several crushed discs in her back. Thanks to this technology, doctors were better able to treat these patients.
Radiologists use the MRI technique in diagnosing and determining treatment for medical problems. Neurosurgeons use an MRI scan to evaluate brain, neck and spinal cord injury following an accident. They can find crushed discs or vertebrae and they can look for internal bleeding, swelling, rips or aneurysms. Cardiologists use the MRI to look at the heart and aorta, not to mention clogging and perforations. Diseases, tumors, unusual growths and damaged soft tissue are all evident with an MRI of the brain and body.
There are no proven side effects of a magnetic resonance imaging scan; however, not all patients are able to have an MRI done. For instance, people with metallic chips, surgical clips, insulin pumps, chemotherapy, artificial joints, bullet fragments, metallic bone plates, prosthetics or pacemakers cannot receive the test because the images will come out distorted and the metal may move around. During the scan, the patient will lie very still inside a magnetic tube as their bodies are scanned. A mild sedative is sometimes administered to reduce the claustrophobia anxiety that may ensue from being strapped down in such an enclosed space. If the patient begins to panic, a button may be pressed to alert nearby staff. Generally speaking, though, the procedure is not a big deal for most patients.
After the magnetic resonance imaging is completed, the computer stores the visual images of the body parts that were scanned. These images are then transferred to film to keep a hard copy. Radiologists, a class of specially trained physicians, will then interpret the results and draw up a report for the patient’s primary practitioner. Lastly, the results are discussed with the patient and/or the family during a regular doctor visit. From there, a diagnosis will be given and treatment options will be discussed.
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Tags: ct mri, medical imaging, mri scan, radiologists, radiology nuclear