Toyoshima Osamu, Nishizawa Toshihiro, Yoshida Shuntaro, Yamada Tomoharu, Odawara Nariaki, Matsuno Tatsuya, Obata Miho, Kurokawa Ken, Uekura Chie, Fujishiro Mitsuhiro
Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan.
Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
World J Gastrointest Endosc. 2022 Feb 16;14(2):96-105. doi: 10.4253/wjge.v14.i2.96.
Olympus Corporation has developed texture and color enhancement imaging (TXI) as a novel image-enhancing endoscopic technique.
To investigate the effectiveness of TXI in identifying colorectal adenomas using magnifying observation.
Colorectal adenomas were observed by magnified endoscopy using white light imaging (WLI), TXI, narrow band imaging (NBI), and chromoendoscopy (CE). This study adopted mode 1 of TXI. Adenomas were confirmed by histological examination. TXI visibility was compared with the visibility of WLI, NBI, and CE for tumor margin, and vessel and surface patterns of the Japan NBI expert team (JNET) classification. Three expert endoscopists and three non-expert endoscopists evaluated the visibility scores, which were classified as 1, 2, 3, and 4.
Sixty-one consecutive adenomas were evaluated. The visibility score for tumor margin of TXI (3.47 ± 0.79) was significantly higher than that of WLI (2.86 ± 1.02, < 0.001), but lower than that of NBI (3.76 ± 0.52, < 0.001), regardless of the endoscopist's expertise. TXI (3.05 ± 0.79) had a higher visibility score for the vessel pattern of JNET classification than WLI (2.17 ± 0.90, < 0.001) and CE (2.47 ± 0.87, < 0.001), but lower visibility score than NBI (3.79 ± 0.47, < 0.001), regardless of the experience of endoscopists. For the visibility score for the surface pattern of JNET classification, TXI (2.89 ± 0.85) was superior to WLI (1.95 ± 0.79, < 0.01) and CE (2.75 ± 0.90, = 0.002), but inferior to NBI (3.67 ± 0.55, < 0.001).
TXI provided higher visibility than WLI, lower than NBI, and comparable to or higher than CE in the magnified observation of colorectal adenomas.
奥林巴斯公司已开发出纹理和色彩增强成像（TXI）作为一种新型的内镜图像增强技术。
研究使用放大观察的TXI在识别大肠腺瘤方面的有效性。
采用白光成像（WLI）、TXI、窄带成像（NBI）和色素内镜检查（CE），通过放大内镜观察大肠腺瘤。本研究采用TXI的模式1。通过组织学检查确认腺瘤。将TXI的可视性与WLI、NBI和CE在肿瘤边缘、日本NBI专家组（JNET）分类的血管和表面模式方面的可视性进行比较。三名专家内镜医师和三名非专家内镜医师对可视性评分进行评估，评分分为1、2、3和4级。
对61例连续的腺瘤进行了评估。无论内镜医师的专业水平如何，TXI的肿瘤边缘可视性评分（3.47±0.79）显著高于WLI（2.86±1.02，P<0.001），但低于NBI（3.76±0.52，P<0.001）。对于JNET分类的血管模式，TXI（3.05±0.79）的可视性评分高于WLI（2.17±0.90，P<0.001）和CE（2.47±0.87，P<0.001），但低于NBI（3.79±0.47，P<0.001），无论内镜医师的经验如何。对于JNET分类的表面模式可视性评分，TXI（2.89±0.85）优于WLI（1.95±0.79，P<0.01）和CE（2.75±0.90，P=0.002），但低于NBI（3.67±0.55，P<0.001）。
在大肠腺瘤的放大观察中，TXI的可视性高于WLI，低于NBI，与CE相当或高于CE。
