COMPUTER-ASSISTED 2-DIMENSIONAL ANALYSIS OF GASTRIC-MUCOSAL HEMOGLOBIN DISTRIBUTION USING ELECTRONIC ENDOSCOPY

被引：9

作者：

SATO, N ^{[1
]}

TSUJI, S ^{[1
]}

KAWANO, S ^{[1
]}

HAYASHI, N ^{[1
]}

TSUJII, M ^{[1
]}

ISHIGAMI, Y ^{[1
]}

OGIHARA, T ^{[1
]}

NAGANO, K ^{[1
]}

KAMADA, T ^{[1
]}

机构：

[1] OSAKA UNIV,SCH MED,DEPT MED,FUKUSHIMA,OSAKA,JAPAN

来源：

ENDOSCOPY | 1992年 / 24卷

关键词：

D O I：

10.1055/s-2007-1010535

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

An electronic endoscope was modified to assess the imaging of two-dimensional distribution of gastrointestinal mucosal hemoglobin with the aid of a computer and image analyzing system. The band-pass filters ranging from 530-470 nm (G'), and 770-830 nm (IR) replaced ordinary filters in a conventional electronic endoscope (Olmpus V-10 or EVIS-200). As the hemoglobin is the most abundant biological pigment in the gastrointestinal mucosa absorbing Che green light with little absorption in the infrared region, we used the algorithm of 32{log2(Vir/Vg)} as a reflection of hemoglobin content in the surface mucosa. The algorithm had a good correlation with the spectrophotometrically measured hemoglobin concentration. The mucosal distribution of hemoglobin was displayed in patients with gastric ulcer. In conclusion, the computer and image analyzing system were successfully applied in an attempt to determine gastric mucosal hemoglobin content and its distribution. The possible applications of computers in endoscopic image analysis are discussed.

引用

页码：522 / 526

页数：5

共 19 条

[1] ELECTRONIC ENDOSCOPY OF THE GASTROINTESTINAL-TRACT - INITIAL EXPERIENCE WITH A NEW TYPE OF ENDOSCOPE THAT HAS NO FIBEROPTIC BUNDLE FOR IMAGING [J].