Both CT and MRI scans are types of imaging studies that produce cross-sectional images of the inside of the body for diagnostic purposes, explains the American Academy of Orthopaedic Surgeons. A CT scan produces the imag... More » Health Diagnostics & Imaging

Prior to an MRI, the patient removes all metal jewelry or objects and changes into a hospital gown, states WebMD. She lays on a lightly padded table that slides into the MRI scanner that looks like a large tube. During t... More » Health Diagnostics & Imaging

Magnetic resonance imaging, or MRI, uses magnets that can heat up or affect the functioning of implanted devices, such as artificial limbs, according to the U.S. Food and Drug Administration. Another safety concern is th... More » Health Diagnostics & Imaging
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MedlinePlus explains that an abdominal MRI, or magnetic resonance image, is a scan that uses powerful magnets and radio waves to generate an image of the inside of the abdomen and stomach area. The test can be performed ... More » Health Diagnostics & Imaging

Foci on an MRI are periventricular white matter lesions, evidence of changes in a patient's brain that appear on the MRI as white spots, states Timothy C. Hain, M.D. From one-third to 80 percent of MRI scans performed on... More » Health Diagnostics & Imaging

An MRI scan is a medical test that uses a magnetic field and radio waves to create a detailed picture of organs and other structures inside the body. MRI stands for magnetic resonance imaging. More » Health Diagnostics & Imaging

Magnetic resonance imaging (MRI) is a noninvasive computerized diagnostic technique that uses strong magnetic fields and radio waves to develop an image of the inside of the body, according to Johns Hopkins Medicine. The... More » Health Diagnostics & Imaging