Tamai Naoto, Horiuchi Hideka, Matsui Hiroaki, Furuhashi Hiroto, Kamba Shunsuke, Dobashi Akira, Sumiyama Kazuki
Department of Endoscopy The Jikei University School of Medicine Tokyo Japan.
DEN Open. 2022 Jan 11;2(1):e90. doi: 10.1002/deo2.90. eCollection 2022 Apr.
To evaluate the visibility of colorectal lesions using a novel image processing algorithm, texture and color enhancement imaging (TXI), that allows the acquisition of brighter images with enhanced color and surface structure.
During August-September 2019, patients referred for endoscopic treatment were prospectively recruited. Electronic data acquired while observing colorectal lesions using white light imaging (WLI) were obtained and recorded: WLI, TXI mode1 (with color enhancement), and TXI mode2 (without color enhancement) videos were constructed. The lesions were also recorded using narrow-band imaging (NBI) from the same perspective as WLI. Four video clips (WLI, TXI mode1, TXI mode2, and NBI) were made per lesion. Thereafter, video files for evaluations were prepared by randomly arranging all video clips. Finally, visualization scores were evaluated by four endoscopists, and the WLI, TXI mode1, TXI mode2, and NBI results were compared.
Overall, 22 patients with 68 lesions were recruited; the video file for evaluation subsequently comprised 272 randomly arranged video clips. Mean visualization scores using WLI, TXI mode1, TXI mode2, and NBI were 70.0 (±20.1), 80.5 (±18.6), 75.6 (±18.1), and 69.0 (±20.6), respectively. Mean visualization scores for flat lesions using WLI, TXI mode1, TXI mode2, and NBI were 64.1 (±21.2), 76.5 (±20.18), 71.8 (±19.4), and 64.2 (±22.0), respectively. Visualization scores using TXI mode1 were significantly better than those using WLI, TXI mode2, or NBI.
TXI enables improved visualization of colorectal lesions, even flat lesions, than WLI and NBI. TXI may allow better detection of colorectal lesions, although further prospective studies are required.
使用一种新型图像处理算法，即纹理和颜色增强成像（TXI），评估结直肠病变的可视性，该算法能够获取具有增强颜色和表面结构的更明亮图像。
在2019年8月至9月期间，前瞻性招募接受内镜治疗的患者。获取并记录使用白光成像（WLI）观察结直肠病变时采集的电子数据：构建WLI、TXI模式1（带颜色增强）和TXI模式2（不带颜色增强）视频。还从与WLI相同的视角使用窄带成像（NBI）记录病变。每个病变制作四个视频片段（WLI、TXI模式1、TXI模式2和NBI）。此后，通过随机排列所有视频片段来准备用于评估的视频文件。最后，由四名内镜医师评估可视化评分，并比较WLI、TXI模式1、TXI模式2和NBI的结果。
总体而言，招募了22例患者，共68个病变；随后用于评估的视频文件包含272个随机排列的视频片段。使用WLI、TXI模式1、TXI模式2和NBI的平均可视化评分分别为70.0（±20.1）、80.5（±18.6）、75.6（±18.1）和69.0（±20.6）。使用WLI、TXI模式1、TXI模式2和NBI对扁平病变的平均可视化评分分别为64.1（±21.2）、76.5（±20.18）、71.8（±19.4）和64.2（±22.0）。使用TXI模式1的可视化评分显著优于使用WLI、TXI模式2或NBI的评分。
与WLI和NBI相比，TXI能够改善结直肠病变（甚至是扁平病变）的可视化。尽管需要进一步的前瞻性研究，但TXI可能有助于更好地检测结直肠病变。
