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Poorly Diagnostic Findings

Brain Metastases: Sensitivity and Specificity

Introduction: Often patients with a known primary cancer need to be staged to evaluate for brain metastases. This may occur in patients with neurological symptoms or those with cancers with high propensity for metastatic disease in the brain (e.g. lung cancer).

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Tags: Neoplasm Neurologic Tag this Diagnosis.

The sensitivity and specificity of findings for Brain Metastases are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
Specific Findings
FindingResult SensitivitySpecificity
[ + ] PET/CT scan + 0 - 27.3%97.6%
Poorly Diagnostic Findings
FindingResult SensitivitySpecificity
[ + ] Contrast-enhanced Head CT Sensitivity = 60%
[ + ] Non-contrast MRI Sensitivity = 50.8%