Abstract:Objective To analyze the condition evaluation of patients with early gastric cancer by white light endoscopy combined with endoscopic ultrasonography (EUS).Methods Retrospective analysis was used to study 45 patients with early gastric cancer from January 2019 to January 2022. All the patients underwent white light endoscopy and EUS. The characteristics of white light endoscopy in different morphological lesions of early gastric cancer were analyzed, the depth evaluation of invasion by EUS and white light endoscopy were analyzed, the T staging of EUS and white light endoscopy were analyzed, and the diagnosis results of white light endoscopy combined with EUS in patients with early gastric cancer were analyzed.Results The results of white light endoscopy in 45 patients with early gastric cancer showed that 4 cases were protuberant, 40 cases were flat, and 1 case was concave. Taking the results of postoperative pathological examination as the gold standard, the T staging results of EUS diagnosis of early gastric cancer were in high consistency with the results of pathological examination, while the T staging results of white light endoscopy diagnosis of early gastric cancer were slightly less consistent with the results of pathological examination. White light endoscopy combined with EUS has better sensitivity, specificity and accuracy in the diagnosis of Tis phase, T1a phase and T1b phase.Conclusion White light endoscopy can better evaluate the depth of invasion in patients with early gastric cancer, EUS can better evaluate the T stage of the lesion, and the combined application of the two has better diagnostic value.