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==Subsequent MRI is more sensitive than CT in detecting ischemic changes, similar to CT with respect to==diagnosing hemorrhageWhere available, and it remains the gold standard for imaging in acute focal neurologicaldeficits . Multimodal MRI (different imaging sequences) provides detailed visualization further diagnostics ofbrain and vessel anatomy, including perfusion data with a higher sensitivity and specificity thanCT to detect stroke mimics . The complete MR [[File:Stroke imaging protocol requires approximately 15algorithm.png|thumb|350px|center|Algorithm.]]to 20 minutes to perform, and an additional 10 minutes for patient positioning and transfer, aswell as calculation {{Main|MRI of the apparent diffusion coefficient and mean transit time maps . MRIcomes with an advantage of decreased exposure to radiation with higher costs, lesser availability,claustrophobia experienced by patients as a drawback, along with absolute contraindicationssuch as metallic implants or pacemakers.<ref name=Mirza2016/>head in stroke}}
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