Appearance of enhanced tissue features in narrow-band endoscopic imaging
Appearance of enhanced tissue features in narrow-band endoscopic imaging
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DOI：
10.1117/1.1695563
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发表时间：
2004-05-01
影响因子：
3.5
通讯作者：
Endo, T
中科院分区：
文献类型：
--
作者：
Gono, K;Obi, T;Endo, T
本研究旨在研究利用窄带照明的医学内窥镜成像的有效性。使用五个窄带照明和三个宽带照明的血管图案和相邻的粘膜的下侧的人的舌头之间的对比度进行了测量。结果表明，血管图案的病理特征依赖于中心波长和照明的带宽。通过利用415 +/- 30 nm的窄带照明，表层中毛细图案的对比度显著提高。这是用普通宽带照明难以获得的重要益处。对三组滤光片的彩色图像上毛细血管图案的外观进行了评价。选择窄带成像（NBI）滤光片组（415 +/- 30 nm、445 +/- 30 nm、500 +/- 30 nm），以获得用于临床试验的血管模式的首选外观。在结肠镜和食管镜的临床试验结果表明，NBI将作为一个有用的支持方法，观察早期癌症的内镜表现。(C)2004年，美国光电仪器工程师学会。
This study was performed to examine the usefulness of medical endoscopic imaging utilizing narrow-band illumination. The contrast between the vascular pattern and the adjacent mucosa of the underside of the human tongue was measured using five narrow-band illuminations and three broadband illuminations. The results demonstrate that the pathological features of a vascular pattern are dependent on the center wavelength and the bandwidth of illumination. By utilizing narrow-band illumination of 415 +/- 30 nm, the contrast of the capillary pattern in the superficial layer was markedly improved. This is an important benefit that is difficult to obtain with ordinary broadband illumination. The appearances of capillary patterns on color images were evaluated for three sets of filters. The narrow, band imaging (NBI) filter set (415 +/- 30 nm, 445 +/- 30 nm, 500 +/- 30 nm) was selected to achieve the preferred appearance of the vascular patterns for clinical tests. The results of clinical tests in colonoscopy and esophagoscopy indicated that NBI will be useful as a supporting method for observation of the endoscopic findings of early cancer. (C) 2004 Society of Photo-Optical Instrumentation Engineers.