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computed tomography of the brain (CT scan)

process that includes the use of a computer to produce a series of images of the tissues of the brain at any desires depth

magnetic resonance imaging of the brain (MRI scan)

a noninvasive technique that produces cross sectional and sagittal images of soft tissues of the brain by magnetic waves

positron emission tomography of the brain (PET scan)

an imaging technique with a radioactive substance that permits viewing a slice of teh brain to examine blood flow and metabolic activity

evoked potential studies (EP studies)

a group of diagnostic tests that measure changes and responses in brain waves elicited by visual, auditory, or somatosensory stimuli

lumbar puncture (LP)

insertion of a needle into the subarachnoid space usually between the third and fourth lumbar vertebrae

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