. Author manuscript; available in PMC: 2014 Jun 5.

Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2014 Mar 18;9035:90352B. doi: 10.1117/12.2043969

Table 2.

Top 3 texture descriptors and their PCA-VIP scores listed for T2-FLAIR, T2-w, and T1-w MRI protocols for primary BT patients. HoG and inverse difference moment were consistently identified as the best performing features in distinguishing RN and rBT for primary BT patients for the three protocols.

MRI protocol	Texture descriptor	π _ϕ,β
Gd-C T1-w MRI	HoG (72° – 107°)	2.15
	Laplacian (Inverse difference moment)	2.026
	Laws (E5L5)	1.621

T2-w MRI	Inverse difference moment	2.21
	HoG (180° – 215°)	1.58
	Laplacian (Inverse difference moment)	1.42

FLAIR MRI	Laplacian (Inverse difference moment)	2.47
	Correlation	1.84
	Inverse difference moment	1.83