. Author manuscript; available in PMC: 2019 Mar 1.

Published in final edited form as: J Neuroimaging. 2018 Jan 10;28(2):173–182. doi: 10.1111/jon.12485

Table 5.

Differences in Mean Absolute Tract Displacement across Resolutions

	Low Resolution – High Resolution (AF)		Low Resolution – High Resolution (CST)
Pipeline	Tumor	Contralateral (Healthy)	Tumor	Contralateral (Healthy)
B0T1	.7 ± .4	.5 ± .2	.9 ± .5	.6 ± .5
B0T2	.2 ± .2	.04 ± .3	.2 ± .3	.2 ± .2
FAT1CC	.7 ± 1.0	.3 ± .2	.6 ± .7	.4 ± .3
FAT1MI	.4 ± .3	.5 ± .3	.5 ± .4	.4 ± .4
mDWIT1	1.0 ± .3	1.0 ± .4	1.0 ± .6	.7 ± .4
Average	.6 ± .4	.5 ± .3	.7 ± .5^*	.5 ± .4^*

Low difference across resolutions indicates high pipeline consistency or robustness, and by this measure the B0T2 pipeline is superior, with the lowest differences in all experiments (second row). The mDWIT1 and B0T1 methods perform worst by this metric, with the highest differences. Note that in the corticospinal tract, results in the tumor hemisphere are more affected by the choice of resolution than results in the contralateral hemisphere (paired t-test, P= .036).

= P < .05, comparison of tumor versus contralateral hemisphere. AF = arcuate fasciculus; CST = corticospinal tract.