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Poorly Diagnostic Findings

Subdural Hematoma: Likelihood Ratios

Introduction: None written.

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Tags: Neurologic Trauma Tag this Diagnosis.

The likelihood ratios of findings for Subdural Hematoma are listed below. See the left navigation bar to change the display.

Poorly Diagnostic Findings

Finding +LR-LR Comments, Study
MRI Edit Sensitivity = 97%

by T1. T2 imaging is only 90% sensitive. Specificity not assessed.

Study: AJR Am J Roentgenol 1988 Mar;150(3):673-82. PMID 3257625

Non-contrast Head CT Edit Sensitivity = 91%

For >5mm thickness. All 'clinically significant' subdurals were detected by CT.

Another study, comparing with autopsy, showed sens = 66% and spec = 95%.

Study: J Trauma. 2007 Sep;63(3):625-9. PMID: 18073611

AJR Am J Roentgenol 1988 Mar;150(3):673-82. PMID 3257625