TABLE 2:

Lesion effect on the adjacent white matter tracts and tract assessment after surgery

Patient No.	Tract	Preoperative Assessment Based on Tractography	Postoperative Assessment Based on Tractography
1	Left CB	Deviated and infiltrated	Returns to normal position; locally interrupted
	Left CST	Deviated and deformed	Close to normal
	CC	Interrupted and partially deviated	Reduced deviations/thinned
2	Left CST	Deviated	Normal
	Left IFOF	Locally interrupted	Locally interrupted
3	Left CST	Deviated (with splaying and deformation)	Reduced deviation
4	Right CR	Infiltrated and partially deviated	More normal appearing; no apparent deviation; reduced region of infiltration
	Right CC	Deviated and partially infiltrated	No apparent deviation; reduced region of infiltration
	Right SLF	Deviated and possible infiltration	No apparent deviation or infiltrations of the trunk region
5	Left CST	Deviated	More normal position
6	Right CST	Slightly deviated	Normal
	Right IFOF/UF	Minor deviations with deformation	More normal position

Note:—CB indicates cingulum bundle; CST, cortico-spinal tract; CC, corpus callosum; IFOF, inferior fronto-occipital fasciculus; CR, corona radiata; SLF, superior longitudinal fasciculus; UF, uncinate fasciculus.