Table 1 Patient characteristics and MRI findings

ClassificationMRI+, n = 105MRI−, n = 114TotalHyperintense basal ganglia on T2, %Sensitivity/specificity
* Encephalitis (n = 2) and one each of spinocerebellar ataxia, B-cell lymphoma, Lewy body dementia, Parkinson plus syndrome, multiple sclerosis, diagnosis unknown.
MRI+ = typical hyperintense basal ganglia; MRI− = no hyperintense basal ganglia.
Definite58369462Sensitivity = 63%
Probable39205966
Other8*586612Specificity = 88%