Variation in Diffusion Tensor Imaging Parameters in the Cervical and Thoracic Spinal Cord (C1-C5 and C6-T2) Segments of Normal Beagle Dogs
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- Kiyotaka Arai
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Takamasa Itoi
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Natsuki Akashi
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Masahiro Miyabe
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Keisuke Sugimoto
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Akira Matsuda
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Noritaka Maeta
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Teppei Kanda
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
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- Kenji Kutara
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoinooka 1-3, Imabari 794-8555, Ehime, Japan
説明
<jats:p>This study aimed to determine the characteristics and reference values of each vertebra in the cervicothoracic region by performing diffusion tensor imaging (DTI) scans and analyzing DTI parameters in normal Beagle dogs. In five adult Beagles under anesthetic maintenance, DTI was performed using a 1.5-T magnetic resonance imaging (MRI) scanner. Axial DTI was performed using three overlapping slabs to cover the cervical and thoracic spinal cords. After post-processing, DTI parameters were calculated along the entire spinal cord. Among DTI parameters, fractional anisotropy, relative anisotropy, and axonal diffusivity significantly decreased in the caudal direction. However, the apparent diffusion coefficient, radial diffusivity, and mean diffusivity values were not significantly correlated with vertebral levels. We provide evidence for the existence of segment-dependent DTI parameters in the canine cervical spinal cord. Therefore, comparisons of DTI parameters between lesions at different vertebral levels should be avoided unless normative data are available. Furthermore, the DTI data obtained in this study may contribute to the development of a clinical reference for spinal cord evaluation in dogs using DTI parameters.</jats:p>
収録刊行物
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- Veterinary Sciences
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Veterinary Sciences 10 (1), 31-, 2023-01-01
MDPI AG