Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.
Dig Endosc. 2022 May;34(4):714-720. doi: 10.1111/den.14182. Epub 2021 Dec 1.
Screening endoscopy improves detection and prognosis of patients with gastric cancer. However, even expert endoscopists can miss early gastric cancer under standard white light imaging. Texture and color enhancement imaging (TXI) is an image-enhanced endoscopy that enhances brightness, surface irregularities such elevation or depression, and subtle color changes. A few image-oriented studies have compared the gastric color differences between neoplastic and peripheral areas under both white light imaging and TXI. The results not only suggested that the overall color differences to be more pronounced in TXI, but also that TXI mode 1 was superior to white light imaging in the visibility of early gastric cancer. Despite the promising results in these initial studies, it is unclear whether the superiority of the image-enhanced endoscopy will translate into an improvement in early gastric cancer detection in real practice. Therefore, large-scale prospective studies are necessary to investigate the efficacy of this new technology in the evaluation of patients undergoing screening endoscopy.
筛查内镜可提高胃癌患者的检出率和预后。然而，即使是经验丰富的内镜医生，在标准白光成像下也可能漏诊早期胃癌。纹理和色彩增强成像（TXI）是一种增强内镜，可增强亮度、表面不规则性（如隆起或凹陷）和细微的颜色变化。一些面向图像的研究比较了在白光成像和 TXI 下，肿瘤和周围区域的胃颜色差异。结果不仅表明 TXI 下整体颜色差异更为明显，而且 TXI 模式 1 在早期胃癌的可视性方面优于白光成像。尽管这些初步研究结果很有前景，但尚不清楚增强内镜的优势是否会转化为实际实践中早期胃癌检测的改善。因此，需要进行大规模前瞻性研究，以调查这项新技术在筛查内镜评估患者中的疗效。
