Table 2.

Contingency table and diagnostic accuracy on per-patient analysis over a total of 30 patients (a) and on per-region analysis over a total of 174 anatomical lymph nodal regions (b) according to preoperative PSMA PET results

	Pathology positive	Pathology negative
a)
PSMA PET positive	6	1
PSMA PET negative	3	20
Sensitivity	67% (30–93%)
Specificity	95% (76–100%)
Positive Predictive Value	86% (42–100%)
Negative Predictive Value	87% (66–97%)
Accuracy	86% (69–96%)
b)
PSMA PET positive	11	14
PSMA PET negative	11	138
Sensitivity	50% (28–72%)
Specificity	91% (85–95%)
Positive Predictive Value	44% (24–65%)
Negative Predictive Value	93% (87–96%)
Accuracy	86% (80–90%)