徳島大学 教育・研究者情報データベース(EDB)

1. 眞鍋 裕昭([徳島大学.病院.先端医科医療開発研究プロジェクト]/[徳島大学.病院.診療科.感覚·皮膚·運動機能科.整形外科])

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2. 酒井 紀典([徳島大学.病院.中央診療施設等.高度先進整形外科診療部])

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3. 宮城 亮

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4. 手束 文威([徳島大学.大学院医歯薬学研究部.医学域.先端医学教育研究プロジェクト]/[徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.運動機能外科学])

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5. 山下 一太([徳島大学.大学院医歯薬学研究部.医学域.連携研究部門(医学域).寄附講座系(医学域).地域運動器・スポーツ医学])

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6. 髙田 洋一郎

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7. 西良 浩一([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.運動機能外科学])

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(英) Identification of abnormalities in the lumbar nerve tract using diffusion-weighted magnetic resonance neurography.

(英) Abnormalities of the lumbar nerve tract caused by congenital variations or high nerve root take-off angles are difficult to visualize. Diffusion-weighted magnetic resonance neurography (DW-MRN) has recently been introduced for imaging of the lumbosacral region. The aims of this study were to identify lumbar nerve tract abnormalities caused by congenital variation or a high nerve root take-off angle using DW-MRN and to assess the diagnostic value of this imaging modality.

(日) Congenital variations were identified in 8 patients (9 nerve roots, 1.6%). The most commonly identified variation was in the sacral nerve root (n = 5) followed by the L4 (n = 3) and L5 (n = 1) nerve roots. All variations identified were on the left side. There were 3 cases of type 1a variation, 1 of type 1b, 1 of type 2, and 4 of type 3. In total, 210 (36.6%) of the magnetic resonance images showed high nerve root take-off angles at the intervertebral foramen that was caused by disk herniation, spondylolisthesis, or osteophytes with degeneration. Patients with high nerve root take-off angles were significantly older than those without (P < 0.05). These slides can be retrieved under Electronic Supplementary Material.

1. (英) PublicationType: Journal Article