Magnetic resonance diffusion tensor imaging for occult lesion detection in multiple sclerosis

Chen,Jiafeng; Zhou,Chunkui; Zhu,Lijun; Yan,Xiuli; Wang,Yonghong; Chen,Xin; Fang,Shaokuan

doi:10.3892/etm.2016.3950

Magnetic resonance diffusion tensor imaging for occult lesion detection in multiple sclerosis

Authors:
- Jiafeng Chen
- Chunkui Zhou
- Lijun Zhu
- Xiuli Yan
- Yonghong Wang
- Xin Chen
- Shaokuan Fang
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Affiliations: Department of Neurology, Neuroscience Centre, The First Teaching Hospital of Jilin University, Changchun, Jilin 130021, P.R. China, Department of Neurology, The Third Teaching Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
Published online on: December 2, 2016 https://doi.org/10.3892/etm.2016.3950
Pages: 91-96
Copyright: © Chen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

It remains challenging to locate occult lesions in patients with multiple sclerosis (MS). Diffusion tensor imaging (DTI) has been demonstrated to have the potential to identify occult changes in MS lesions. The present study used 3.0T magnetic resonance DTI to investigate the characteristics of different stages of MS lesions. DTI parameters, fractional anisotropy (FA), mean diffusivity (MD), λ// and λ┴ values of lesions were compared at the different stages of 10 patients with MS with 10 normal controls. The results demonstrated that FA and λ// values of MS silent and subacute lesions are decreased and MD and λ┴ values are increased, as compared with those of normal appearing white matter (NAWM) and normal controls. NAWM FA values were lower, and MD, λ//, and λ┴ values were higher than those of normal controls. It was also indicated that MS lesions had reduced color signals compared with the controls, and the lesion area appeared larger using DTI as compared with diffusion‑weighted imaging. Furthermore, fiber abnormalities were detected in MS lesions using DTT, with fewer fibers connected to the lesion side, as compared with the contralateral side. FA, MD, λ// and λ┴ values in the thalamus were increased, as compared with those of normal controls (P<0.05); whereas MD, λ// and λ┴ values were significantly increased and FA values significantly decreased in the caudate nucleus and deep brain gray matter (DBGM) of patients with MS, as compared with the controls (P<0.05). λ// and λ┴ values were also significantly increased in the DBGM of patients with MS as compared with normal controls (P<0.05). The present findings demonstrate that DTI may be useful in the characterization of MS lesions.

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