EJNMMI Reports

Table 2 Summary of scan distribution

From: Early acquisition of [¹⁸F]FDOPA PET/CT imaging in patients with recurrent or residual medullary thyroid cancer is safe—and slightly better!

Early acquisition
Reported findings	20	19 true positive	70.4%	Sensitivity = TP/TP + FN = 100%
Reported findings	20	1 false positive	3.7%	Sensitivity = TP/TP + FN = 100%
Remaining scans	7	0 false negative	0.0%	Specificity = TN/TN + FP = 87.5%
Remaining scans	7	7 true negative	25.9%	Specificity = TN/TN + FP = 87.5%
Total	27		100%

Late acquisition
Reported findings	19	19 true positive	70.4%	Sensitivity = TP/TP + FN = 100%
Reported findings	19	0 false positive	0.0%	Sensitivity = TP/TP + FN = 100%
Remaining scans	8	0 false negative	0.0%	Specificity = TN/TN + FP = 100%
Remaining scans	8	8 true negative	29.6%	Specificity = TN/TN + FP = 100%
Total	27		100%

TP true positive, FP false positive, TN true negative, FN false negative

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