Table 3.

Histology agreement.

Reader	Expert		Experienced		Novice
RAW/BN	RAW	BN	RAW	BN	RAW	BN
SUVCTX	0.34**	0.34**	0.34**	0.34**	0.32**	0.31**
SUVRCTX∕CBL	0.76	0.75	0.76	0.74	0.66*	0.74
SUVRCTX∕WM	0.78	0.76	0.76	0.76	0.69*	0.75
SUVRCTX∕BST	0.74	0.74	0.74	0.73	0.70*	0.73
SUVRCTX∕GLM	0.75	0.76	0.76	0.76	0.70*	0.75

Correlations (R) with plaque load (%) as assessed by histochemistry for expert, experienced and novice reader for the different scaling methods before (RAW) and after brain normalization (BN). Significant differences between correlation coefficients are indicated for SUV_CTX vs. any SUVR_CTX∕REF and for raw fusions vs. brain normalizations of the same reader

^*p < 0.05;

^**p < 0.001.