title: Reorganization of the right arcuate fasciculus following left arcuate fasciculus resection in children with intractable epilepsy.
abstract: The authors evaluated postsurgical reorganization of the arcuate fasciculus longitudinally using diffusion tensor imaging in 10 children with intractable epilepsy, whose resections included the left arcuate fasciculus. Evaluation of fractional anisotropy before and after surgery (mean follow-up: 7.5 months) showed a significant increase (P = .002) in the right arcuate fasciculus during follow-up. There was marked enlargement of the right arcuate fasciculus postsurgically in 8 patients. The change in right arcuate fasciculus fractional anisotropy values showed a positive correlation with interval between resection and postsurgical magnetic resonance imaging (MRI) (P = .044). Comparison of 10 age-matched controls to patients pre- and postsurgery showed significantly reduced presurgery fractional anisotropy in the left (P = .018) and right (P = .036) arcuate fasciculus and no difference in postsurgery fractional anisotropy in the right arcuate fasciculus (P = .399) in patients. These findings suggest a compensatory reorganization in the right arcuate fasciculus in children with intractable epilepsy following left arcuate fasciculus resection.
authors.affiliation: Carman and Ann Adams Department of Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, USA.
authors.forename: Dhruman
authors.initials: D
authors.lastname: Goradia
authors.forename: Harry T
authors.initials: HT
authors.lastname: Chugani
authors.forename: Rajkumar Munian
authors.initials: RM
authors.lastname: Govindan
authors.forename: Michael
authors.initials: M
authors.lastname: Behen
authors.forename: Csaba
authors.initials: C
authors.lastname: Juhász
authors.forename: Sandeep
authors.initials: S
authors.lastname: Sood
mesh_terms: D000293:Adolescent; D016880:Anisotropy; D016022:Case-Control Studies; D002540:Cerebral Cortex / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D038524:Diffusion Magnetic Resonance Imaging; D004827:Epilepsy / Q000473:pathology / Q000601:surgery*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D007802:Language; D008137:Longitudinal Studies; D008297:Male; D009413:Nerve Fibers, Myelinated / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology / Q000601:surgery*; D016896:Treatment Outcome