Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors
Study aims This study aimed to investigate the clinical usefulness of magnifying endoscopy (ME) for non-ampullary duodenal tumors. Patients and methods We enrolled 103 consecutive patients with non-ampullary duodenal tumors that were observed by ME with narrow-band imaging (ME-NBI) and ha...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Georg Thieme Verlag KG
2017-04-01
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| Series: | Endoscopy International Open |
| Online Access: | http://www.thieme-connect.de/DOI/DOI?10.1055/s-0043-103681 |
| _version_ | 1818136784628875264 |
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| author | Takeshi Mizumoto Yoji Sanomura Shinji Tanaka Kazutoshi Kuroki Mio Kurihara Yoshikazu Yoshifuku Shiro Oka Koji Arihiro Fumio Shimamoto Kazuaki Chayama |
| author_facet | Takeshi Mizumoto Yoji Sanomura Shinji Tanaka Kazutoshi Kuroki Mio Kurihara Yoshikazu Yoshifuku Shiro Oka Koji Arihiro Fumio Shimamoto Kazuaki Chayama |
| author_sort | Takeshi Mizumoto |
| collection | DOAJ |
| description | Study aims This study aimed to investigate the clinical usefulness of magnifying endoscopy (ME) for non-ampullary duodenal tumors.
Patients and methods We enrolled 103 consecutive patients with non-ampullary duodenal tumors that were observed by ME with narrow-band imaging (ME-NBI) and had pit pattern analysis before endoscopic resection at Hiroshima University Hospital before December 2014. ME-NBI images were classified as Type B or Type C according to the Hiroshima classification, and pit patterns were classified as regular or irregular. We studied the clinicopathological features and diagnoses with ME-NBI and pit pattern analyses according to the Vienna classification (category 3: 73 patients; category 4: 30 patients).
Results Category 4 lesions were significantly larger than category 3 lesions. According to ME-NBI images, category 4 Type C lesions (83 %) were significantly more common than category 4 Type B lesions (17 %). According to pit pattern analyses, category 4 irregular lesions 4 (77 %) were significantly more common than category 4 regular lesions (23 %). The accuracies of using Type C ME-NBI images and irregular pit patterns to diagnose category 4 lesions were 87 % and 84 %, the sensitivities were 83 % and 77 %, and the specificities were 89 % and 88 %, respectively. There was no significant difference between ME-NBI and pit pattern analyses for diagnosing the histologic grade of non-ampullary duodenal tumors.
Conclusion Our study showed that ME-NBI and pit pattern analysis had equivalent abilities to determine the histologic grade of non-ampullary duodenal tumors. ME-NBI may be more useful because it is a simple, less time-consuming procedure. |
| first_indexed | 2024-12-11T09:45:55Z |
| format | Article |
| id | doaj.art-a25e607d03414537b3010a767311f065 |
| institution | Directory Open Access Journal |
| issn | 2364-3722 2196-9736 |
| language | English |
| last_indexed | 2024-12-11T09:45:55Z |
| publishDate | 2017-04-01 |
| publisher | Georg Thieme Verlag KG |
| record_format | Article |
| series | Endoscopy International Open |
| spelling | doaj.art-a25e607d03414537b3010a767311f0652022-12-22T01:12:33ZengGeorg Thieme Verlag KGEndoscopy International Open2364-37222196-97362017-04-010504E297E30210.1055/s-0043-103681Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumorsTakeshi Mizumoto0Yoji Sanomura1Shinji Tanaka2Kazutoshi Kuroki3Mio Kurihara4Yoshikazu Yoshifuku5Shiro Oka6Koji Arihiro7Fumio Shimamoto8Kazuaki Chayama9Department of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Endoscopy, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Endoscopy, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of Anatomical Pathology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanDepartment of the Faculty of Humanities and Human Sciences, Hiroshima Shudo University, 1-1-1 Otsukahigashi, Asaminami-ku, Hiroshima 731-3195, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, JapanStudy aims This study aimed to investigate the clinical usefulness of magnifying endoscopy (ME) for non-ampullary duodenal tumors. Patients and methods We enrolled 103 consecutive patients with non-ampullary duodenal tumors that were observed by ME with narrow-band imaging (ME-NBI) and had pit pattern analysis before endoscopic resection at Hiroshima University Hospital before December 2014. ME-NBI images were classified as Type B or Type C according to the Hiroshima classification, and pit patterns were classified as regular or irregular. We studied the clinicopathological features and diagnoses with ME-NBI and pit pattern analyses according to the Vienna classification (category 3: 73 patients; category 4: 30 patients). Results Category 4 lesions were significantly larger than category 3 lesions. According to ME-NBI images, category 4 Type C lesions (83 %) were significantly more common than category 4 Type B lesions (17 %). According to pit pattern analyses, category 4 irregular lesions 4 (77 %) were significantly more common than category 4 regular lesions (23 %). The accuracies of using Type C ME-NBI images and irregular pit patterns to diagnose category 4 lesions were 87 % and 84 %, the sensitivities were 83 % and 77 %, and the specificities were 89 % and 88 %, respectively. There was no significant difference between ME-NBI and pit pattern analyses for diagnosing the histologic grade of non-ampullary duodenal tumors. Conclusion Our study showed that ME-NBI and pit pattern analysis had equivalent abilities to determine the histologic grade of non-ampullary duodenal tumors. ME-NBI may be more useful because it is a simple, less time-consuming procedure.http://www.thieme-connect.de/DOI/DOI?10.1055/s-0043-103681 |
| spellingShingle | Takeshi Mizumoto Yoji Sanomura Shinji Tanaka Kazutoshi Kuroki Mio Kurihara Yoshikazu Yoshifuku Shiro Oka Koji Arihiro Fumio Shimamoto Kazuaki Chayama Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors Endoscopy International Open |
| title | Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors |
| title_full | Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors |
| title_fullStr | Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors |
| title_full_unstemmed | Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors |
| title_short | Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors |
| title_sort | clinical usefulness of magnifying endoscopy for non ampullary duodenal tumors |
| url | http://www.thieme-connect.de/DOI/DOI?10.1055/s-0043-103681 |
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