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Updated: Oct 8, 2025

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
Scout it out! Wake-Up Stroke Protocol to Expedite MRI in Stroke Patients
Sukhwinder J S Sandhu1, Sandeep K Valluri2, Greggory D Boatright1
1Department of Radiology, Mayo Clinic, Jacksonville, FL.
Abstract:
In wake-up stroke patients, magnetic resonance imaging (MRI) is useful to identify patients that would benefit from thrombolytic therapy. Our multidisciplinary stroke team developed and implemented a workflow to rapidly identify patients that are able to safely undergo an MRI exam, thus decreasing time to treatment. We employ a full-body CT scout image in our CT head protocol for acute stroke in order to identify implantable devices and foreign bodies. This protocol highlights the importance of radiology playing an active role on the multidisciplinary stroke team in order to effectively and promptly treat patients.

