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High-yield criteria for urgent cranial computed tomography scans
Annals of Emergency Medicine
|October 1, 1986
Summary
Urgent cranial computed tomography (CT) scans are most valuable for patients with coma, trauma, seizures, hemiparesis, or headache. Establishing clear criteria improves the diagnostic yield of emergency CT imaging for critical conditions.
Area of Science:
- Radiology
- Emergency Medicine
- Neurology
Background:
- Urgent cranial computed tomography (CT) scans are frequently utilized in emergency settings.
- Defining high-yield criteria for these scans is crucial for efficient resource allocation and diagnostic accuracy.
Purpose of the Study:
- To establish high-yield criteria for urgent cranial CT scans in medical and surgical emergencies.
- To correlate clinical findings with CT results in a large cohort of emergency patients.
Main Methods:
- A retrospective study of 407 patients undergoing emergency cranial CT scans.
- Correlation of clinical indications (trauma, seizures, altered mental status, hemiparesis, headache, coma) with CT findings and impact on patient management.
Main Results:
- The diagnostic yield for CT scans altering patient management was highest in coma (46%), trauma (30%), and seizures (23%).
- Moderate yields were observed for hemiparesis (22%) and headache (21%).
- Lower yields were noted for altered mental status (8%) and indications outside established criteria (7%).
Conclusions:
- Specific clinical indications like coma, trauma, and seizures demonstrate a high yield for urgent cranial CT.
- Established criteria can help optimize the use of emergency CT scans, improving diagnostic utility for critical neurological conditions.