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Magnetic resonance imaging (MRI) is a safe and painless test that produces clear, cross-sectional or three-dimensional images of the body’s tissues, even through bone and other obstructions. Because of its safety and clarity, the MRI is a valuable tool that can aid in the diagnosis of a wide range of conditions, including injuries and diseases that affect the organs and glands of the digestive system (e.g., pancreas, liver).
MRI is used to detect abnormalities or problems in nearly every part of the body including:
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Abdomen
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Musculoskeletal system
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Blood vessels
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Head and brain
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Heart and chest
Typically, an MRI test is an outpatient procedure performed at a hospital or clinic. Patients should closely follow their physician’s recommendations in preparing for the test, and all patients will be asked to remove all jewelry beforehand.
During MRI, the patient is placed on a long bed that slides into the MRI chamber. Once inside the chamber, the patient must remain still for the duration of the procedure. Patients may be instructed to hold their breath at times. The MRI equipment will record multiple images of the target site on film. After receiving the radiology report, the physician will be more prepared to confirm a diagnosis or prescribe further tests and treatments.
Because the MRI test relies on a large magnetic field, certain people should avoid the test. These include patients with implanted pacemakers and implantable cardioverter defibrillators (ICDs). Patients with certain other medical implants should consult with a physician to find out when an MRI is permitted. In all cases, patients should inform the physician or technician of any tattoos or metal objects present in their bodies. Also, pregnant women should generally avoid MRI tests because the risk to the developing fetus is unknown. However, there may be some instances when an MRI is warranted in pregnant patients.
Patients who are nervous in small spaces may wish to ask their physician about the possibility of receiving a sedative during the procedure, which may take up to one hour or longer in a rather tight space. Using a less-enclosed type of MRI machine may be another option. If patients receive a sedative, then they will need someone to drive them home after the test. Otherwise, patients are free to go about their daily activities after the test is completed.
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