| High-resolution Diffusion Tensor Imaging for the Detection of Diffusion Abnormalities in the Trigeminal Nerves of Patients with Trigeminal Neuralgia Caused by Neurovascular Compression. | |
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MedLine Citation:
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PMID: 20649853 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE: To detect diffusion abnormalities in the trigeminal nerves of patients with trigeminal neuralgia (TN) caused by neurovascular compression (NVC) by using a high-resolution diffusion tensor imaging (HR-DTI) technique. METHODS: Thirteen patients with TN and 14 healthy controls underwent HR-DTI scanning. After extracting the trigeminal nerve using a tractography technique, we measured the fractional anisotropy (FA) and apparent diffusion coefficient (ADC), and compared the contralateral ratios (CR) of these parameters between the patients and controls, and correlated these ratios with the cross-sectional areas of the nerves. RESULTS: The CRs of the FA values for the trigeminal nerves of the patients (1.00 ± 0.15) had significantly higher variance than those of healthy controls (1.00 ± 0.05) (P < .05) and showed a positive correlation with the cross-sectional area of the nerves (r= 0.81). In contrast, the CRs of the ADC values were not significantly different between the two groups (1.02 ± 0.10 and 1.01 ± 0.08, respectively) and had no significant correlation with cross-sectional area. CONCLUSION: HR-DTI can detect an alteration in the relative FA values of affected trigeminal nerves and a correlation with atrophic changes in patients with NVC-induced TN. |
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Authors:
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Shunrou Fujiwara; Makoto Sasaki; Tsukasa Wada; Kohsuke Kudo; Ryonoshin Hirooka; Daiya Ishigaki; Yasumasa Nishikawa; Ayumi Ono; Mao Yamaguchi; Kuniaki Ogasawara |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of neuroimaging : official journal of the American Society of Neuroimaging Volume: 21 ISSN: 1552-6569 ISO Abbreviation: J Neuroimaging Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9102705 Medline TA: J Neuroimaging Country: United States |
Other Details:
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Languages: eng Pagination: e102-8 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 by the American Society of Neuroimaging. |
Affiliation:
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From the Advanced Medical Research Center, Iwate Medical University, Morioka, Japan (SF, MS, KK, AO, MY); Department of Neurosurgery, Iwate Medical University, Morioka, Japan (TW, RH, DI, YN, KO). |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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