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経腹部超音波検査による胃癌の壁深達度評価
著者
キーワード
depth of tumor invasion
endoscopic ultrasonography
gastric cancer
ruptured form of the third layer
transabdominal ultrasonography
NDC分類
4類 自然科学
抄録
Background: Although endoscopy and endoscopic ultrasonography are generally used to diagnose the depth of gastric tumor invasion, endoscopy is invasive and frequently results in patient discomfort. Transabdominal ultrasonography (TUS) is noninvasive and may be useful in determining this depth. We investigated the usefulness of TUS in determining the depth of tumor invasion in patients with gastric cancer.
Methods: This retrospective study included 190 patients with gastric cancer and 200 lesions who underwent curative resection at the Department of Gastrointestinal Surgery of Tottori University Hospital from July 2007 to July 2015. The results of conventional diagnostic imaging and TUS were compared with those of pathological analysis obtained after surgery. Furthermore, the ruptured form of the third layer on TUS imaging was reviewed and investigated to differentiate between the SM2 and MP lesions.
Results: The accuracy of TUS was similar to that of conventional diagnostic imaging for all depths of tumor invasion. Eight lesions could not be assessed by TUS, including four that could not be identified and four in which TUS was unable to diagnose the depth. In cases where the ruptured form of the third layer could be determined in MP lesions, the forms were observed toward the inside of the gastric lumen.
Conclusion: The results of this study suggested that the accuracy of TUS was equivalent to that of conventional diagnostic imaging in determining the depth of tumor invasion. TUS assessment criteria may be useful to classify this depth. Furthermore, the ruptured form of the third layer is believed to be important in distinguishing between early and advanced gastric cancer.
資料タイプ
学位論文(要旨のみのもの含む)
外部リンク
http://www.lib.tottori-u.ac.jp/yam/yam/yam60-3/60-3contents.html
最新掲載誌名
発行日
2017-09-30
著者版フラグ
博士論文全文を含む
著作権表記
注があるものを除き、この著作物は日本国著作権法により保護されています。
掲載情報
Kengo Sato, Hiroaki Saito, Kazuo Yashima, Hajime Isomoto and Yasuaki Hirooka. Transabdominal ultrasonography for assessing the depth of tumor invasion in gastric cancer. Yonago Acta Medica, 2017, 60, pp.154-161
言語
英語
学位論文授与番号
甲第33号
学位授与年月日
2017-09-30
学位名
博士(保健学)
学位授与機関
鳥取大学