最佳光谱显像系统能有效诊断早期胃癌
Results
Demarcation of the depressed-type early gastric cancer was easily identified by optimal band images without magnification in 26 of 27 cases (96%), because distinct demarcation was observed endoscopically between the reddish images of the cancerous lesion and the yellowish images of the surrounding noncancerous area. With 40-fold magnification of optimal band images, the demarcation was also clearly recognized in all cases. Medical students could point out the demarcation line with significantly greater accuracy by observing the new nonmagnified optimal band images than by the conventional images (P < .0001).
Limitation
Small sample size.
Conclusions
The new contrasting images of the OBI system can delineate the depressed-type early gastric cancer more easily than conventional endoscopy.
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