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Author:

Qi, Shun (Qi, Shun.) | Mu, Yun-Feng (Mu, Yun-Feng.) | Cui, Long-Biao (Cui, Long-Biao.) | Li, Rong (Li, Rong.) | Shi, Mei (Shi, Mei.) | Liu, Ying (Liu, Ying.) | Xu, Jun-Qing (Xu, Jun-Qing.) | Zhang, Jian (Zhang, Jian.) | Yang, Jian (Yang, Jian.) | Yin, Hong (Yin, Hong.)

Indexed by:

SCIE PubMed Scopus CSCD

Abstract:

Previous studies have indicated regional abnormalities of both gray and white matter in amblyopia. However, alterations of cortical thickness associated with changes in white matter integrity have rarely been reported. In this study, structural magnetic resonance imaging and diffusion tensor imaging (DTI) data were obtained from 15 children with anisometropic amblyopia and 15 age- and gender-matched children with normal sight. Combining DTI and surface-based morphometry, we examined a potential linkage between disrupted white matter integrity and altered cortical thickness. The fractional anisotropy (FA) values in the optic radiations (ORs) of children with anisometropic amblyopia were lower than in controls (P < 0.05). The cortical thickness in amblyopic children was lower than controls in the following subregions: lingual cortex, lateral occipitotemporal gyrus, cuneus, occipital lobe, inferior parietal lobe, and temporal lobe (P < 0.05, corrected), but was higher in the calcarine gyrus (P < 0.05, corrected). Node-by-node correlation analysis of changes in cortical thickness revealed a significant association between a lower FA value in the OR and diminished cortical thickness in the following subregions: medial lingual cortex, lateral occipitotemporal gyrus, lateral, superior, and medial occipital cortex, and lunate cortex. We also found a relationship between changes of cortical thickness and white matter OR integrity in amblyopia. These findings indicate that developmental changes occur simultaneously in the OR and visual cortex in amblyopia, and provide key information on complex damage of brain networks in anisometropic amblyopia. Our results also support the hypothesis that the pathogenesis of anisometropic amblyopia is neurodevelopmental.

Keyword:

Anisometropic amblyopia Children Cortical thickness Diffusion tensor imaging Optic radiation

Author Community:

  • [ 1 ] [Qi, Shun; Cui, Long-Biao; Liu, Ying; Xu, Jun-Qing; Yin, Hong] Fourth Mil Med Univ, Xijing Hosp, Dept Radiol, Xian 710032, Peoples R China
  • [ 2 ] [Qi, Shun; Yang, Jian] Xi An Jiao Tong Univ, Affiliated Hosp 1, Dept Radiol, Xian 710061, Peoples R China
  • [ 3 ] [Mu, Yun-Feng; Shi, Mei] Fourth Mil Med Univ, Xijing Hosp, Dept Radiotherapy, Xian 710032, Peoples R China
  • [ 4 ] [Li, Rong] Xian Med Univ, Affiliated Hosp, Dept Ophthalmol, Xian 710077, Peoples R China
  • [ 5 ] [Zhang, Jian] Fourth Mil Med Univ, Dept Resp Med, Xijing Hosp, Xian 710032, Peoples R China

Reprint Author's Address:

  • Fourth Mil Med Univ, Xijing Hosp, Dept Radiol, Xian 710032, Peoples R China.; Yang, J (reprint author), Xi An Jiao Tong Univ, Affiliated Hosp 1, Dept Radiol, Xian 710061, Peoples R China.

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Source :

NEUROSCIENCE BULLETIN

ISSN: 1673-7067

Year: 2016

Issue: 1

Volume: 32

Page: 51-60

2 . 6 2 4

JCR@2016

5 . 2 0 3

JCR@2020

ESI Discipline: NEUROSCIENCE & BEHAVIOR;

ESI HC Threshold:177

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 16

SCOPUS Cited Count: 24

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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