What is the role of rapid MRI in the diagnosis of acute stroke?

Updated: Dec 09, 2020
  • Author: Souvik Sen, MD, MPH, MS, FAHA; Chief Editor: Helmi L Lutsep, MD  more...
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Following acute ischemic stroke, treatment measures to induce reperfusion must be implemented within a recognized time frame ,which means that timely recognition of this condition is vital. This involves bedside assessments followed by appropriate imaging studies including MRI. Stroke mimics including metabolic, traumatic, migranous, neoplastic, convulsive, and psychiatric disorders account for 3-30% of patients presenting with acute neurological deficits. [11] A rapid MRI sequence may be used to select patients for rapid diagnosis and treatment. [12] Such MRI sequence typically incorporates diffusion weighted sequence, FLAIR and gradient sequence, requiring less than 10 minutes, and have been successfully incorporated into acute stroke management protocol.

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