Fig. 6.

Comparison of the effects of the two types of fixative on susceptibility and R2* maps. Mean R2* values over the whole brain is plotted for the two types of fixative (A). Mean R2* (B) and susceptibility (C) values in the whole primary motor cortex (M1) region are plotted for the two types of fixative. Mean R2* values in the 10% neutral buffered formalin (NBF) group were significantly lower compared to the 10% formalin group over whole brain (p=0.0031, Hedges's g=−3.287) and in M1 (p=0.0004, Hedges's g=−3.059), whereas no significant difference was found for the mean susceptibility values in two fixative groups (p=0.58, Hedges's g= 0.286) in M1.

** p<0.01; *** p<0.001