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Table 3 DSC between GTVs delineated by observers A, B and C in the 18F and 68Ga subgroups

From: Gross tumor volume delineation in primary prostate cancer on 18F-PSMA-1007 PET/MRI and 68Ga-PSMA-11 PET/MRI

GTV

18F

68Ga

 

DSC(A-B)

DSC(B-C)

DSC(A-C)

DSC(A-B)

DSC(B-C)

DSC(A-C)

GTV-MRI

0.86(0.81–0.89)

0.86(0.84–0.89)

0.82(0.78-0.86)

0.90(0.86–0.95)

0.87(0.83–0.91)

0.86(0.84–0.87)

GTV-PETVIS

0.90(0.86–0.94)

0.87(0.85–0.90)

0.85(0.82–0.87)

0.87(0.83–0.91)

0.86(0.82–0.88)

0.82(0.78–0.86)

GTV-PET/MRI

0.91(0.87–0.94)

0.93(0.89–0.97)

0.92(0.87–0.95)

0.91(0.88–0.93)

0.96(0.92–0.97)

0.89(0.87–0.91)

  1. GTV gross tumor volume, DSC Dice similarity coefficient, DSC(A-B), DSC between GTVs delineated by observers A and B respectively, DSC(B-C) DSC between GTVs delineated by observers B and C respectively, DSC(A-C) DSC between GTVs delineated by observers A and C respectively