ARRS 2022 Abstracts

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E1827. An Updated Primer on Imaging Ballistic Injuries
Authors
  1. Jaykumar Nair; St. Michael's Hospital, University of Toronto
  2. Bipin Nanda; St. Michael's Hospital, University of Toronto
  3. David Ng; Western University
  4. Robert Moreland; St. Michael's Hospital, University of Toronto
  5. Shobhit Mathur; St. Michael's Hospital, University of Toronto
  6. Noah Ditkofsky; St. Michael's Hospital, University of Toronto
Background
This exhibit provides a basic knowledge of firearms and ballistics and review of mechanisms of ballistic tissue injuries and common types. We cover the role of imaging in ballistic injuries with illustrative examples.

Educational Goals / Teaching Points
Both direct and indirect injury is caused by the bullet and the shockwave created around its path. When interpreting imaging, one should use a mechanistic approach to establish bullet trajectory followed by assessment for injuries along the established path. Retained bullet fragments should be considered MRI conditional, and with the appropriate preceding workup patients, may be safely imaged.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Please refer to the attached PowerPoint presentation

Conclusion
Understanding the mechanisms of ballistic trauma and injury patterns aids to guide image interpretation.