背景

图像增强内镜检查术（IEE）有助于早期发现胃肠道癌症。IEE增强了病变和背景黏膜之间的颜色差异。一种新型的IEE—联动成像技术（LCI），是一种独特的图像增强技术，一些研究已经证明了LCI基于癌症和背景黏膜之间的色差在诊断早期胃癌（EGC）中的功效。然而，这种效果可能会增加疑似癌症区域的增加并导致假阳性结果升高。

Background:Image enhanced endoscopy (IEE) contributes to the early detection of gastrointestinal cancer. IEE enhances the color between a lesion and the background mucosa. Linked color imaging (LCI), a novel form of IEE, is a unique system for enhancing color and some studies have demonstrated the efficacy of LCI in the diagnosis of early gastric cancer (EGC) based on the color difference between cancer and the background mucosa. However, the effect may increase the area in which cancer is suspected and lead to an increase in false-positive results.

总结

我们对分化的EGC和可疑黏膜区域的LCI图像进行回顾性研究，以比较每个病变之间的颜色。分析了38个EGC和23个可疑区域的图像。EGC的平均色值如下；L*（亮度），61.7；a*（绿色到红色），41.2；b*（蓝色到黄色），27.1。可疑黏膜区域的平均色值如下：L*，56.1；a*，44.2；b*，21.3。跟可疑黏膜区域相比，EGC具有更高的L*、b*和更低的a*。跟背景黏膜相比，EGC和可疑黏膜区域具有显著更高的a*值。

Summary:We conducted a retrospective study of linked color images of differentiated EGC and suspicious mucosal areas to compare the colors between each lesion. Images of 38 EGCs and 23 suspicious areas were analyzed. The mean color values of EGC were as follows; L*(lightness), 61.7; a*(green to red), 41.2; and b*(blue to yellow), 27.1. Those of suspicious mucosal areas were as follows; L*, 56.1; a*, 44.2; and b*, 21.3. EGC had significantly higher L*, b* values and lower a* values in comparison to suspicious mucosal areas. EGC and suspicious mucosal areas had significantly higher a* values in comparison to the background mucosa.