Table 2.

Inter-reader measures of agreement for lesions in different regions

Region	[18F]PSMA-1007 PET/CT	[18F]Fluciclovine PET/CT
Prostate (bed)	0.59 (0.46–0.72)	0.49 (0.37–0.61)
Lymph node metastases	0.73 (0.63–0.82)	0.59 (0.50–0.68)
Hematologic metastases	0.52 (0.44–0.61)	0.57 (0.48–0.66)

The Fleiss multirater κ statistics (confidence interval) was used to assess inter-reader agreement between the readers for each tracer ([¹⁸F]PSMA-1007 and [¹⁸F]Fluciclovine) for lesions in different regions. Lymph node metastases include pelvic and distant lymph nodes. Hematologic metastases include skeletal and visceral lesions. A positive number of κ statistics is the degree of agreement above the chance of agreement. Negative κ-statistics indicate that there is less agreement than expected by chance