Accuracy of magnetic resonance imaging in predicting dentate line invasion in low rectal cancer.

• Material Type: 博士論文
• ISSN: 1867-1071
• Title: Accuracy of magnetic resonance imaging in predicting dentate line invasion in low rectal cancer.
• Volume: 38 6
• Author/Editor: Tatsumoto, Shota; Itoh, Takahiro; Takahama, Junko; Marugami, Nagaaki; Minamiguchi, Kiyoyuki; Tanaka, Toshihiro; Koyama, Fumikazu; Morita, Kohei; Kichikawa, Kimihiko
• Author Heading: Tatsumoto, Shota; Itoh, Takahiro; Takahama, Junko; Marugami, Nagaaki; Minamiguchi, Kiyoyuki; Tanaka, Toshihiro; Koyama, Fumikazu; Morita, Kohei; Kichikawa, Kimihiko
• Publication, Distribution, etc.: Springer
• Publication Date: 2020-06; 38 6
• Publication Date (W3CDTF): 2020-06
• Alternative Title: 下部直腸癌におけるMRIを用いた歯状線浸潤の診断精度
• Periodical title: Japanese journal of radiology
• Degree grantor/type: 奈良県立医科大学
• Date Granted: 2020-06-30
• Date Granted (W3CDTF): 2020-06-30
• Dissertation Number: 甲第748号
• Degree Type: 博士（医学）
• Conferring No. (Dissertation): 甲第748号
• Text Language Code: eng
• Subject Heading: Anal canal; Dentate line; Magnetic resonance imaging; Rectal cancer; Rectum
• Target Audience: 一般
• Note (General): type:Thesis; Purpose: To retrospectively assess the accuracy of magnetic resonance imaging (MRI) in predicting dentate line invasion in low rectal cancer. Materials and methods: Eighty-one patients with primary rectal cancer were assessed by dynamic contrast-enhanced MRI. The location of the dentate line was assessed on MRI in 27 patients with upper-mid rectal cancer. Two observers independently evaluated the distance between the distal tumor edge and the MRI-defined dentate line in 54 patients with low rectal cancer, and the imaging and histological findings were compared. Results: The MRI-defined dentate line was 24.0 ± 3.8 mm above the anal verge in patients with upper-mid rectal cancer. The dentate line invasion status agreed with the histological findings in 49/54 (91%) patients (κ = 0.72 [95% CI 0.50-0.95]) for observer 1, and in 51/54 (94%) patients (κ = 0.83 [0.65-1.00]) for observer 2 in patients with low rectal cancer. Interobserver agreement was good (κ = 0.83 [0.65-1.00]). The MRI-derived distance between the distal tumor edge and the dentate line had significant correlation with the histological distance (r = 0.86 for reader 1 and 0.75 for observer 2). Conclusion: MRI demonstrates high accuracy in predicting dentate line invasion in low rectal cancer.; 博士（医学）・甲第748号・令和2年6月30日; © Japan Radiological Society 2020; © 2020 Springer Nature Switzerland AG. Part of Springer Nature.; This is a post-peer-review, pre-copyedit version of an article published in Japanese journal of radiology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11604-020-00933-5.; identifier:Japanese journal of radiology Vol.38 No.6 p.539-546 (2020 Jun); identifier:18671071; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3755; identifier:Japanese journal of radiology, 38(6): 539-546
• DOI: info:doi/10.1007/s11604-020-00933-5; https://doi.org/info:doi/10.1007/s11604-020-00933-5
• Persistent ID (NDL): info:ndljp/pid/12263268; https://dl.ndl.go.jp/pid/12263268
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-05-09T11:57:37+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://hdl.handle.net/10564/3755
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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