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Brain CT requests from emergency department: Reality.

M Novoa Ferro¹, E Santos Armentia¹, N Silva Priegue¹

¹Hospital Povisa, Servicio de Radiodiagnóstico, Vigo, Pontevedra, Spain.

|October 15, 2022

Summary

This summary is machine-generated.

Most emergency department brain CT scans reveal no acute pathology. Overutilization of these scans increases workload and patient radiation exposure without significant clinical benefit.

Keywords:

Brain Cerebral Computed tomography Cráneo Dose of radiation Dosis de radiación Emergency department Head Neuroimagen Neuroimaging Tomografía computarizada Urgencias

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Area of Science:

Radiology
Emergency Medicine
Neuroradiology

Background:

Brain CT scans are frequently requested in emergency departments.
Understanding the indications and diagnostic yield is crucial for optimizing resource allocation.

Purpose of the Study:

To identify the primary reasons for urgent brain CT requests in the emergency department.
To determine the prevalence of acute pathological findings in this patient cohort.

Main Methods:

Retrospective review of 507 urgent brain CT studies from October-November 2018.
Data collected included demographics, reason for request, CT findings, contrast use, and comparison with prior studies.
Statistical analysis performed using SPSS.

Main Results:

Head trauma was the most common indication (40.5%), with only 15.6% showing acute intracranial lesions.
Focal neurological symptoms accounted for 16% of requests, with 16% revealing ischemic infarcts or bleeding.
No pathological findings were reported in 43.2% of studies; small vessel ischemic lesions were the most frequent abnormality (20%).

Conclusions:

The majority of urgent brain CT scans requested from emergency departments do not reveal findings that alter patient management.
The overuse of these scans contributes to increased workload and unnecessary radiation exposure for patients.