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Advances in medical technology have revolutionized diagnostic brain imaging. Traditional radiography and invasive contrast studies for intracranial imaging have been superseded by several newer imaging modalities which provide high resolution, crosssectional images. Ultrasonography, computed tomography, magnetic resonance, and nuclear scintigraphy are now used for anatomical and functional imaging of the brain. These noninvasive modalities are available at most veterinary teaching institutions and are offered through many larger referral practices. The diagnostic usefulness and clinical limitations for each of these modalities are described.