A member asked:

Can mri without contrast diagnose stroke or is ct better?

4 doctors weighed in across 2 answers
Dr. Robert Kent answered

Specializes in Physical & Rehabilitation Medicine

Usually a ct is done: Acutely, or in the first 24 hours to rule out a bleed and see larger strokes. After the acute diagnostic phase, an MRI may be done to see smaller strokes or level and/or progression of damage if it was an ischemic stroke.

Answered 3/8/2018

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MRI: Both studies are commonly used in the early evaluation of stroke. A ct can rule out a hemorrhagic stroke quickly in the er. A MRI is more sensitive for a ischemic stroke but takes longer to perform.

Answered 1/14/2015

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