Table 3.

Resolution and FA threshold required to delineate the seven fiber pathways. +, delineable; * partially delineable; ^, few fibers delineable; -, no fibers delineable.

voxel size (mm)	0.25 × 0.25 × 0.25	0.5 × 0.5 × 0.5	0.75 × 0.75 × 0.75		1 × 1 × 1		1.5 × 1.5 × 1.5
FA threshold	0.22	0.22	0.22	0.11	0.22	0.11	0.11
al	+	+	+	+	*	+	-
fl	+	+	+	+	+	+	^
fct	+	+	+	+	*	+	+
frf	+	+	*	*	-	-	-
mtt	+	+	+	+	-	+	-
ml - tl - stt	+	+	+	+	+	+	^
stf	+	+	+	+	*	*	-