Abstract
Purpose
To determine the utility of cervical spine MRI in blunt trauma evaluation for instability after a negative non-contrast cervical spine CT.
Methods
A review of medical records identified all adult patients with blunt trauma who underwent CT cervical spine followed by MRI within 48 h over a 33-month period. Utility of subsequent MRI was assessed in terms of findings and impact on outcome.
Results
A total of 1,271 patients with blunt cervical spine trauma underwent both cervical spine CT and MRI within 48 h; 1,080 patients were included in the study analysis. Sixty-six percent of patients with a CT cervical spine study had a negative study. Of these, the subsequent cervical spine MRI had positive findings in 20.9%; 92.6% had stable ligamentous or osseous injuries, 6.0% had unstable injuries and 1.3% had potentially unstable injuries. For unstable injury, the NPV for CT was 98.5%. In all 712 patients undergoing both CT and MRI, only 1.5% had unstable injuries, and only 0.42% had significant change in management.
Conclusions
MRI for blunt trauma evaluation remains not infrequent at our institution. MRI may have utility only in certain patients with persistent abnormal neurological examination.
Key Points
• MRI has limited utility after negative cervical CT in blunt trauma.
• MRI is frequently positive for non-specific soft-tissue injury.
• Unstable injury missed on CT is infrequent.
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Abbreviations
- ALL:
-
Anterior Longitudinal Ligament
- CSI:
-
Cervical spine injury
- CT:
-
Computed tomography
- ED:
-
Emergency department
- GCS:
-
Glasgow Coma Scale
- IRB:
-
Institutional Review Board
- MRI:
-
Magnetic resonance imaging
- MVA:
-
Motor vehicle accident
- NEXUS:
-
National Emergency XRadiography Utilization Study
- NPV:
-
Negative predictive value
- PLC:
-
Posterior ligamentous complex
- PLL:
-
Posterior longitudnal ligament
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The scientific guarantor of this publication is Ajay Malhotra.
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The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
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No complex statistical methods were necessary for this paper.
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Institutional Review Board of Yale University approval was obtained for this study.
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Written informed consent was waived by Institutional Review Board.
Methodology
• retrospective
• case-control study
• performed at one institution
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Malhotra, A., Durand, D., Wu, X. et al. Utility of MRI for cervical spine clearance in blunt trauma patients after a negative CT . Eur Radiol 28, 2823–2829 (2018). https://doi.org/10.1007/s00330-017-5285-y
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DOI: https://doi.org/10.1007/s00330-017-5285-y