Magnetic Resonance Imaging (MRI) uses radio waves in a magnetic field to produce detailed images of the body. It's the MRI’s precise image detail that allows physicians to locate extremely small problems or disease processes.
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How do patients prepare for the exam?
MRI’s are fairly common procedures. Some patients request a sedative or
anesthesia, but otherwise, there is no preparation for the exam.
Patients should wear comfortable clothing and remove all metal items
prior to entering the procedure room. Patients with pacemakers, metal
implants, screws, cardiac stents or other metal devices within the body
may still qualify for MRI scanning. It is important for patients to
discuss implanted devices with their physicians and the MRI staff.
How is the exam performed?
An MRI scan is a very easy exam. Most exams last 30 to 60 minutes
depending on the type of exam ordered by the physician. Normal dress is
acceptable if ALL metal objects (like metal zippers) are removed. A
hospital gown can be provided if clothing is a concern.
Once all safety information is obtained, patients lie on the imaging table. Loud knocking or clicking noises are normal for MRI units. Once scanning begins, patients should be as still as possible.
When are results available?
A radiologist interprets the MRI scans the day they are performed. Some
cases may require comparison to other exams, resulting in a slight
delay. Hamilton provides results directly to physicians as soon as the
radiologist verifies the report accuracy.