Hamamoto Yasuo, Endo Takao, Nosho Katsuhiko, Arimura Yoshiaki, Sato Masaaki, Imai Kohzoh
Department of Internal Medicine, Sapporo Medical University, South 1, West 16, Chuo-ku, Sapporo 060-8543, Japan.
J Gastroenterol. 2004 Jan;39(1):14-20. doi: 10.1007/s00535-003-1239-z.
A newly developed endoscope lighting system called a narrow-band imaging system emphasizes certain histological features such as capillary and crypt pattern. The usefulness of NBI for the diagnosis of Barrett's esophagus (BE) was evaluated.
Eleven patients with previously diagnosed BE were enrolled in this study. Magnifying endoscopy was performed by an experienced endoscopist, using both a conventional system and an NBI system. All images were recorded by video and by a digital still image filing system. Differences in images were evaluated by another experienced endoscopist. The quality of images for the visualization of the esophagogastric junction, capillary vessels, and columnar-lined esophagus (CLE) was judged as: optimal (score of 4), diagnostic (3), suboptimal (2), or nondiagnostic (1).
In contrast to the low rate of visualization of the esophagogastric junction by conventional endoscopy, visualization of this area endoscopy was better by NBI. Net-like blood vessels were more clearly seen on images obtained by NBI endoscopy. Visualization of the CLE was better by NBI endoscopy than by conventional endoscopy. In contrast to conventional endoscopy, NBI endoscopy captured the optimal view of Barrett's epithelium. The relationship between the endoscopic and histopathologic diagnoses was more accurate by NBI endoscopy than by conventional endoscopy.
Magnifying endoscopy by NBI is more useful than conventional magnifying endoscopy for the diagnosis of BE.
一种新开发的称为窄带成像系统的内窥镜照明系统强调某些组织学特征，如毛细血管和隐窝模式。评估了窄带成像（NBI）在巴雷特食管（BE）诊断中的实用性。
本研究纳入了11例先前诊断为BE的患者。由经验丰富的内镜医师使用传统系统和NBI系统进行放大内镜检查。所有图像均通过视频和数字静态图像存档系统记录。由另一位经验丰富的内镜医师评估图像差异。将食管胃交界处、毛细血管和柱状上皮食管（CLE）可视化的图像质量判断为：最佳（4分）、诊断性（3分）、次佳（2分）或非诊断性（1分）。
与传统内镜检查中食管胃交界处的低可视化率相比，NBI内镜检查对该区域的可视化效果更好。在NBI内镜检查获得的图像上，可以更清楚地看到网状血管。NBI内镜检查对CLE的可视化效果优于传统内镜检查。与传统内镜检查相比，NBI内镜检查获得了巴雷特上皮的最佳视野。NBI内镜检查在内镜诊断与组织病理学诊断之间的关系上比传统内镜检查更准确。
NBI放大内镜检查在BE诊断中比传统放大内镜检查更有用。
