Ischemic stroke MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Aysha Anwar, M.B.B.S [2]

Overview

MRI

For diagnosing ischemic stroke in the emergency setting:^[1]

MRI scan

sensitivity= 83%

specificity= 98%

MRI scan

sensitivity= 81%

specificity= 100%

For detecting chronic hemorrhages, an MRI scan is more sensitive.^[2]

For the assessment of stable stroke, nuclear medicine scans SPECT and PET/CT may be helpful. SPECT documents cerebral blood flow and PET with FDG isotope the metabolic activity of the neurons.