• David F Black, Christopher P Wood, Michael L Wells, Bradley J Erickson, Felix E Diehn, Timothy J Kaufmann, Charlotte H Rydberg, Julie R Gilbertson, and Christopher H Hunt.
• Radiology Department, Mayo Clinic, Rochester, MN.
• J Neuroimaging. 2015 Jul 1; 25 (4): 590-4.

Background And PurposeRequests for after-hours emergent spine MR imaging seem to be increasing. We sought to review the trend in after hours spine MRI utilization at our institution and to determine how these results impacted therapeutic intervention.MethodsFollowing Institutional Review Board approval, reports from 179 after hours spinal MRI's performed over the past 13 years were obtained and the relevant electronic medical records were reviewed.ResultsEmergent after hours spine MRI utilization increased from 7 per year to 23 over 13 years. Fifty-eight percent (104/179) had significant findings. Twenty-nine percent (52/179) of all patients imaged underwent surgery to treat pathologies identified on MR. Surgery was performed in only 2% (4/179) of these patients within 3 hours and 6% (10/179) within 6 hours of MRI completion. Five percent (8/179) had findings that were treated with radiation therapy and in 78% of these it was performed within 6-12 hours. Of those in whom steroids or antibiotics were initiated, 41% and 50% were treated within 3 hours of MR scanning, respectively.DiscussionClinical use of emergent after hours spine MRI is steadily increasing at our institution. While MR imaging often discerned significant pathologies, performing these emergent studies rarely resulted in immediate surgical or radiotherapeutic intervention.Copyright © 2014 by the American Society of Neuroimaging.

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