Semi-quantification method | Comparison data | SBRs considered | Cut-offs defined by |
---|---|---|---|
SQ 1 | Age-matched normals | Left and right putamen | Mean − 2SD |
SQ 2 | Age-matched normals | Left and right putamen and caudate | Mean − 2SD |
SQ 3 | Age-matched normals | Left and right putamen only | Mean − 1.5SD |
SQ 4 | Age-matched normals | Left and right putamen and caudate | Mean − 1.5SD |
SQ 5 | Age-matched normals | Left and right putamen | Mean − 1SD |
SQ 6 | Age-matched normals | Left and right putamen and caudate | Mean − 1SD |
SQ 7 | Age-matched normals | Left and right putamen | Minimum |
SQ 8 | Age-matched normals | Left and right putamen and caudate | Minimum |
SQ 9 | All normals | Left and right putamen | Linear regression − 2SE |
SQ 10 | All normals | Left and right putamen and caudate | Linear regression − 2SE |
SQ 11 | All normals | Left and right putamen | Linear regression − 1.5SE |
SQ 12 | All normals | Left and right putamen and caudate | Linear regression − 1.5SE |
SQ 13 | All normals | Left and right putamen | Linear regression − 1SE |
SQ 14 | All normals | Left and right putamen and caudate | Linear regression − 1SE |
SQ 15 | All normals and abnormals | Lowest putamen | Optimal point on ROC curve |
SQ 16 | All normals and abnormals | Lowest putamen and lowest caudate | Optimal point on ROC curve |
SQ 17 | Age-matched normals and abnormals | Lowest putamen | Optimal point on ROC curve |
SQ 18 | Age-matched normals and abnormals | Lowest putamen and lowest caudate | Optimal point on ROC curve |