Molecular Imaging 2017

Interobserver Agreement:

PIRADS v2.0

Rosenkrantz AB et al. Radiology 2016; 280(3): 793-804

Inter-observer agreement

PI-RADS score of ≥4 :

κ = 0.593 in peripheral zone

κ = 0.509 in transition zone

Diffusion-weighted imaging

κ = 0.535–0.619

Dynamic contrast enhanced

κ = 0.266–0.439

Definite T2-w extraprostatic

extension

κ = 0.289