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Computed tomography in the emergency department

J Sosna1, B S Slasky, J Bar-Ziv

  • 1Department of Radiology, Hadassah University Hospital, Jerusalem, Israel.

The American Journal of Emergency Medicine
|May 1, 1997
PubMed
Summary

Computed tomography (CT) scans in the emergency department (ED) were analyzed. Patients hospitalized were more likely to receive ED CT scans, particularly for head and spine imaging.

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Area of Science:

  • Radiology
  • Emergency Medicine
  • Health Services Research

Background:

  • Computed tomography (CT) utilization in emergency departments (EDs) has evolved significantly.
  • Understanding current patterns of ED CT use is crucial for resource allocation and quality improvement.
  • Previous studies have not comprehensively detailed the demographic and clinical parameters associated with ED CT scans.

Purpose of the Study:

  • To identify key parameters reflecting the current use of computed tomography (CT) in the emergency department (ED).
  • To establish baseline data for comparing ED CT practices across different medical centers.
  • To provide insights for hospital administrators, health planners, and clinicians regarding ED CT utilization.

Main Methods:

  • Retrospective analysis of computerized data for patients seen in the ED between January 1, 1992, and September 30, 1995.
  • Calculation of ED CT rates per 1,000 patients.
  • Comparison of ED CT utilization between hospitalized and discharged patients.
  • Analysis of common anatomical regions scanned and associated hospitalization rates.
  • Assessment of the correlation between patient age and ED CT use.

Main Results:

  • The overall rate of ED CT was 36 per 1,000 patients.
  • Patients who were hospitalized had a significantly higher rate of ED CT (6.04%) compared to discharged patients (2.81%; P < .001).
  • Head CT was the most frequent examination (55.38%), followed by abdomen, pelvis, spine, and chest.
  • Hospitalization rates were higher for patients undergoing CT of the abdomen (50.76%), pelvis (51.46%), and chest (55.61%) compared to head (35.99%) and spine (36.84%).
  • ED CT utilization showed a positive linear correlation with increasing age, with head CT being most common in the very young and elderly.

Conclusions:

  • Specific parameters for ED CT use have been identified, including higher utilization in hospitalized patients and specific age groups.
  • The findings provide a foundation for inter-institutional comparisons of ED CT practices.
  • Further prospective studies across diverse ED settings are recommended to validate and expand upon these findings.

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