Clinical and CT Diagnosis: Sensitivity and Specificity

Introduction: None written. Excerpt from the entry in Normal Pressure Hydrocephalus:
'probable' NPH by all of the following criteria:

Clinical: 1) Predominance of gait disturbances; 2) Mental impairment ranging from not clinically present to moderate; 3) Absence of another disease which might explain the clinical symptoms.

CT: 1) Rounded frontal horns; 2) At least moderate ventriculomegaly (FHi 0 40 or higher); 3) Absence of moderate or severe cortical atrophy, and 4) Absence of moderate or severe white matter lucencies.

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Associated Diagnoses:

Normal Pressure Hydrocephalus

54% sensitive, 84% specific