BACKGROUND AND PURPOSE: The neurologic significance of residual cerebral white matter tracts, identified on diffusion tensor tractography, has not been well studied in tuberous sclerosis complex. We aimed to correlate the quantity of reconstructed white matter tracts with the degree of neurologic impairment of subjects with the use of DTI and determined differences in white matter integrity between patients with tuberous sclerosis complex and controls with the use of voxelwise analysis. MATERIALS AND METHODS: In this case-control study, 16 patients with tuberous sclerosis complex and 12 control subjects underwent DTI. Major white matter tracts, comprising bilateral PF and CF, were reconstructed and assessed for quantity, represented by NOP and NOF. A neurologic severity score, based on the presence of developmental disability, seizure, autism, and other neuropsychiatric disorders, was calculated for each subject. We then correlated this score with white matter quantity. Voxelwise tract-based spatial statistics was used to determine differences in FA, axial, and radial diffusivity values between the tuberous sclerosis complex group and the control subjects. RESULTS: NOP and NOF of CF, bilateral PF, and MWT in the tuberous sclerosis complex group were all significantly lower than those in the control subjects (P < .05). The neurologic severity score was moderately negatively correlated with NOF and NOP regarding CF (r = -.70; r = -.75), bilateral PF (r = -.66; r = -.68), and MWT (r = -.71; r = -.74). Tract-based spatial statistics revealed that patients with tuberous sclerosis complex showed a widespread reduction (P < .05) in FA and axial diffusivity in most cerebral white matter regions. CONCLUSIONS: Patients with tuberous sclerosis complex with reduced residual white matter were neurologically more severely affected. Tract-based spatial statistics revealed decreased FA and axial diffusivity of the cerebral white matter in the tuberous sclerosis complex group, suggesting reduced axonal integrity.
BACKGROUND AND PURPOSE: The neurologic significance of residual cerebral white matter tracts, identified on diffusion tensor tractography, has not been well studied in tuberous sclerosis complex. We aimed to correlate the quantity of reconstructed white matter tracts with the degree of neurologic impairment of subjects with the use of DTI and determined differences in white matter integrity between patients with tuberous sclerosis complex and controls with the use of voxelwise analysis. MATERIALS AND METHODS: In this case-control study, 16 patients with tuberous sclerosis complex and 12 control subjects underwent DTI. Major white matter tracts, comprising bilateral PF and CF, were reconstructed and assessed for quantity, represented by NOP and NOF. A neurologic severity score, based on the presence of developmental disability, seizure, autism, and other neuropsychiatric disorders, was calculated for each subject. We then correlated this score with white matter quantity. Voxelwise tract-based spatial statistics was used to determine differences in FA, axial, and radial diffusivity values between the tuberous sclerosis complex group and the control subjects. RESULTS:NOP and NOF of CF, bilateral PF, and MWT in the tuberous sclerosis complex group were all significantly lower than those in the control subjects (P < .05). The neurologic severity score was moderately negatively correlated with NOF and NOP regarding CF (r = -.70; r = -.75), bilateral PF (r = -.66; r = -.68), and MWT (r = -.71; r = -.74). Tract-based spatial statistics revealed that patients with tuberous sclerosis complex showed a widespread reduction (P < .05) in FA and axial diffusivity in most cerebral white matter regions. CONCLUSIONS:Patients with tuberous sclerosis complex with reduced residual white matter were neurologically more severely affected. Tract-based spatial statistics revealed decreased FA and axial diffusivity of the cerebral white matter in the tuberous sclerosis complex group, suggesting reduced axonal integrity.
Authors: T Hattori; K Ito; S Aoki; T Yuasa; R Sato; M Ishikawa; H Sawaura; M Hori; H Mizusawa Journal: AJNR Am J Neuroradiol Date: 2011-10-20 Impact factor: 3.825
Authors: Demet Karadag; Hans-J Mentzel; Daniel Güllmar; Tina Rating; Ulrike Löbel; Ulrich Brandl; Jürgen R Reichenbach; Werner A Kaiser Journal: Pediatr Radiol Date: 2005-06-14
Authors: B H Braffman; L T Bilaniuk; T P Naidich; N R Altman; M J Post; R M Quencer; R A Zimmerman; B A Brody Journal: Radiology Date: 1992-04 Impact factor: 11.105
Authors: M E Ahmadi; D J Hagler; C R McDonald; E S Tecoma; V J Iragui; A M Dale; E Halgren Journal: AJNR Am J Neuroradiol Date: 2009-06-09 Impact factor: 3.825
Authors: Anastasia K Zikou; Vasileios G Xydis; Loukas G Astrakas; Iliada Nakou; Loukia C Tzarouchi; Meropi Tzoufi; Maria I Argyropoulou Journal: Pediatr Radiol Date: 2016-04-16
Authors: Petrus J de Vries; Elena Belousova; Mirjana P Benedik; Tom Carter; Vincent Cottin; Paolo Curatolo; Maria Dahlin; Lisa D'Amato; Guillaume B d'Augères; José C Ferreira; Martha Feucht; Carla Fladrowski; Christoph Hertzberg; Sergiusz Jozwiak; J Chris Kingswood; John A Lawson; Alfons Macaya; Ruben Marques; Rima Nabbout; Finbar O'Callaghan; Jiong Qin; Valentin Sander; Matthias Sauter; Seema Shah; Yukitoshi Takahashi; Renaud Touraine; Sotiris Youroukos; Bernard Zonnenberg; Anna C Jansen Journal: Orphanet J Rare Dis Date: 2018-09-10 Impact factor: 4.123