Patients do not feel any pain while undergoing an MRI and no special diet or preparation is required before this exam. MRI may be used in addition to mammography to detect breast cancer, particularly in women who have dense breast tissue or who may be at high risk of the disease. Joint abnormalities caused by traumatic or repetitive injuries.Inflammation or blockages in the blood vesselsĪn MRI may be used to check for tumors or other abnormalities of many organs in the body, including the:.Structural problems in the aorta, such as aneurysms or dissections.The extent of damage caused by heart attack or heart disease.Thickness and movement of the walls of the heart.The size and function of the heart’s chambers.Functional MRI of the brain (fMRI) can be used to identify important language and movement control areas in the brain in people who are being considered for brain surgery.Īn MRI that focuses on the heart or blood vessels can assess:.MRI is the most frequently used imaging test of the brain and spinal cord. It produces high-resolution images that help diagnose a variety of problems. MRI is a noninvasive way for your doctor to examine your organs, tissues and skeletal system. The MRI machine can also be used to produce 3-D images that may be viewed from many different angles. Radio waves cause these aligned atoms to produce very faint signals, which are used to create cross-sectional MRI images - like slices in a loaf of bread. When you lie inside an MRI machine, the magnetic field temporarily realigns hydrogen atoms in your body. Most MRI machines are large, tube-shaped magnets. Magnetic resonance imaging (MRI) is a technique that uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

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