Adult brain tumors MRI
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Adult brain tumors Microchapters |
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Diagnosis |
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Adult brain tumors MRI On the Web |
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American Roentgen Ray Society Images of Adult brain tumors MRI |
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Risk calculators and risk factors for Adult brain tumors MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of the brain and spinal cord. A substance called gadolinium is injected into the patient through a vein. The gadolinium collects around the cancer cells so they show up brighter in the picture. This procedure is also called nuclear magnetic resonance imaging (NMRI).
MRI
MRI has superior soft-tissue resolution; it can better detect isodense lesions, tumor enhancement, and associated findings such as edema, all phases of hemorrhagic states (except hyperacute), and infarction. High-quality MRI is the diagnostic study of choice in the evaluation of intramedullary and extramedullary spinal cord lesions. In posttherapy imaging, single-photon emission computed tomography (SPECT) and positron emission tomography (PET) may be useful in differentiating tumor recurrence from radiation necrosis.