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Fig. 5 | EJNMMI Research

Fig. 5

From: Diagnostic performance of the specific uptake size index for semi-quantitative analysis of I-123-FP-CIT SPECT: harmonized multi-center research setting versus typical clinical single-camera setting

Fig. 5

Interquartile range (IQR) relative to the 75th percentile of the voxel intensity in the reference region according to correctness of SUSI-based and SBR-based classification of the PPMI FP-CIT images as PD or HC (“correct” = true positive or true negative, “incorrect” = false positive or false negative). The relative IQR is as measure of the uncertainty of the estimate of the non-displaceable count density by the 75th percentile of the voxel intensity in the reference region

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