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Unfavorable courses were characterized by a mosaic appearance of the graft on the T1-weighted image, widening of the border in the direction of the graft, and continuous changes in the adjacent vertebrae on each image (pattern PU). Conclusions : A consistent pattern was observed in serial MRI after spinal interbody fusion. 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  1. 0 資料タイプ別
  2. 03 紀要論文
  1. 250 大学院医歯学総合研究科(医)
  2. 20 紀要
  3. 01 Acta medica et biologica
  4. Vol.47 No.1

Evaluation of Spinal Interbody Fusion Using Magnetic Resonance Imaging

http://hdl.handle.net/10191/1880
http://hdl.handle.net/10191/1880
941f62f7-4f3f-452b-b1d4-419ad74fd274
名前 / ファイル ライセンス アクション
KJ00000007197.pdf KJ00000007197.pdf (4.8 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-05-10
タイトル
タイトル Evaluation of Spinal Interbody Fusion Using Magnetic Resonance Imaging
タイトル
言語 en
タイトル Evaluation of Spinal Interbody Fusion Using Magnetic Resonance Imaging
言語
言語 eng
キーワード
主題Scheme Other
主題 magnetic resonance imaging (MRI)
キーワード
主題Scheme Other
主題 spine
キーワード
主題Scheme Other
主題 surgery
キーワード
主題Scheme Other
主題 interbody fusion
キーワード
主題Scheme Other
主題 bone graft
キーワード
主題Scheme Other
主題 delayed union
キーワード
主題Scheme Other
主題 nonunion
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 NAKADAI, Hiroshi

× NAKADAI, Hiroshi

WEKO 52546

NAKADAI, Hiroshi

Search repository
NAKAMURA, Takahiko

× NAKAMURA, Takahiko

WEKO 52547

NAKAMURA, Takahiko

Search repository
SATO, Sakae

× SATO, Sakae

WEKO 52548

SATO, Sakae

Search repository
TAKAHASHI, Hideaki E.

× TAKAHASHI, Hideaki E.

WEKO 52549

TAKAHASHI, Hideaki E.

Search repository
抄録
内容記述タイプ Abstract
内容記述 Study design : Prospective study of magnetic resonance imaging (MRI) in human spinal interbody fusion. Objectives : To determine whether a consistent pattern of bony fusion could be identified on MR images during spinal interbody fusion. Summary of background data : Plain radiography has traditionally been used to monitor changes in bone graft incorporation in patients with spinal interbody fusion. We felt that MRI would provide additional significant information in monitoring the course of bony union in spinal interbody fusion. Methods : Twenty patients underwent spinal interbody fusion via an anterior approach in this study. Beginning immediately after surgery, serial T1-weighted and T2-weighted MR images, as well as post-contrast MRI, were performed. Signal intensity changes were examined in the bone graft, the border between the graft and the adjacent vertebrae, and in the adjacent vertebrae, and were classified into 5 patterns (P1∿P5) on each image. Unclassifiable patterns were also defined. Results : On T1-weighted images, the graft exhibited high intensity immediately after surgery. The intensity subsequently decreased with time. On T2-weighted images, the graft was isointense for a period of time after surgery, and then exhibited high intensity. The grafts eventually became isointense on both T1-weighted and T2-weighted images by the time of bony union as determined from plain radiographs. On post-contrast images, an enhancement effect was noted from the upper and lower edges of the graft. This effect gradually increased until the entire graft became enhanced. In the adjacent vertebrae, transient changes were found in the early postoperative period. Post-contrast images revealed contrast enhancement. In cases with a favorable course, there was a tendency to gradually change from P1 to P5 with time. Unfavorable courses were characterized by a mosaic appearance of the graft on the T1-weighted image, widening of the border in the direction of the graft, and continuous changes in the adjacent vertebrae on each image (pattern PU). Conclusions : A consistent pattern was observed in serial MRI after spinal interbody fusion. This technique would seem useful in evaluating the course of bony fusion.
書誌情報 Acta medica et biologica
en : Acta medica et biologica

巻 47, 号 1, p. 27-39, 発行日 1999-03
出版者
出版者 Niigata University School of Medicine
ISSN
収録物識別子タイプ ISSN
収録物識別子 05677734
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00508361
著者版フラグ
値 publisher
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