Article Figures & Data
Figures
- FIGURE 1.
Example of final report page from analysis of subject A, documenting SBRs for right caudate (Caud) and putamen (Puta) as well as for left caudate and putamen (1.17, 1.10, 1.80, and 1.25, respectively). Average (ave) of these 4 values is shown as 1.33 in top right corner. Placement of caudate and putamen small white ROIs is shown superimposed on summed slices containing stratum. Large red crescent ROI is used to determine nonspecific background count density. Central vertical dark line drawn in upper half of image is used as check to ensure that left and right striata were correctly localized during automated processing.
- FIGURE 2.
Summary report showing statistics from ROC analysis of 94 patients using lowest putamen SBR calculated by OSA as variable, compared with classification from majority consensus of 3 expert readers. Table at bottom shows sensitivity and specificity for each cutoff criterion with their associated 95% confidence intervals (CI) and likelihood ratios (LR).
- FIGURE 3.
Scatterplot showing OSA values for 3 categories of visual read interpretations: normal indicates unanimous consensus of normal scan (n = 29), abnormal indicates unanimous consensus of dopaminergic deficit (n = 59), and discordant indicates no unanimous consensus (n = 13).
