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Related Experiment Video

Updated: Feb 4, 2026

Focused Assessment with Sonography for Trauma FAST Exam: Image Acquisition
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Essentials of Head Trauma Imaging.

Courtney Frey1, J Michael Hazenfield1

  • 1Division of Neuroradiology, University of Cincinnati Medical Center, Cincinnati, OH.

Seminars in Ultrasound, CT, and MR
|September 25, 2018
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT) is the primary imaging tool for head trauma, effectively detecting critical injuries like hemorrhage and fractures. Magnetic resonance imaging (MRI) is used selectively when CT findings don

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Area of Science:

  • Radiology
  • Emergency Medicine
  • Neurology

Background:

  • Head trauma is a frequent reason for emergency room neuroimaging.
  • Computed tomography (CT) is the initial imaging modality of choice due to its speed, safety, and efficacy in identifying intracranial hemorrhage, mass effect, and skull fractures.
  • Magnetic resonance imaging (MRI) is reserved for specific cases where clinical findings do not align with CT results, such as suspected diffuse axonal injury.

Purpose of the Study:

  • To provide emergency room physicians and radiologists with a consistent search pattern for evaluating head trauma imaging.
  • To present a comprehensive 'outside-to-inside' approach for head trauma imaging analysis.
  • To highlight common and subtle, critical 'should not miss' findings in head trauma imaging and their clinical correlations.

Main Methods:

  • Review of neuroimaging modalities (CT and MRI) for head trauma.
  • Description of a systematic 'outside-to-inside' imaging evaluation strategy.
  • Discussion of common and critical findings relevant to emergency room management.

Main Results:

  • CT is highly effective for initial assessment of acute head trauma, identifying hemorrhage, mass effect, and fractures.
  • MRI plays a crucial role in specific scenarios, particularly for diagnosing diffuse axonal injury when clinical suspicion is high despite normal CT.
  • A structured approach aids in the comprehensive evaluation of head trauma, ensuring detection of both common and subtle injuries.

Conclusions:

  • A consistent, systematic approach to head trauma imaging is beneficial for emergency physicians and radiologists, especially trainees.
  • The 'outside-to-inside' evaluation strategy facilitates thorough assessment of CT and MRI scans in head trauma.
  • Accurate and timely interpretation of neuroimaging is critical for appropriate patient management following head injury.