磁控胶囊胃镜在上消化道疾病诊断中的应用价值

Objective To explore the application value of magnetic-controlled capsule gastroscopy(MCCG) in the diagnosis of upper gastrointestinal diseases. Methods A total of 60 patients with suspected upper gastrointestinal diseases admitted to the Department of Gastroenterology of the Third Affiliated Hospital of Guizhou Medical University from January 2023 to January 2026 were selected. All patients underwent MCCG examination followed by conventional gastroscopy. The results of conventional gastroscopy combined with pathological examination were used as the gold standard to compare the detection rates, diagnostic efficiency, diagnostic consistency, and safety of the two examination methods. The general comfort questionnaire(GCQ) was used to evaluate patient comfort during the examination. Results The overall detection rate of MCCG for upper gastrointestinal diseases was 88.33%, which showed no statistically significant difference compared to the conventional gastroscopy detection rate of 91.67%(P>0.05). MCCG demonstrated a sensitivity of 89.09%, specificity of 80.00%, positive predictive value of 98.00%, negative predictive value of 40.00%, and an Youden index of 0.691. The overall agreement rate between MCCG and conventional gastroscopy was 86.67%(P<0.001), indicating high consistency. The score of the GCQ in the MCCG group was higher than that in the traditional gastroscopy group, and the difference was statistically significant(P<0.05). Conclusion MCCG exhibits high accuracy in the diagnosis of upper gastrointestinal diseases, demonstrating good diagnostic efficacy. It shows strong diagnostic consistency with conventional gastroscopy, and superior safety, making it an important alternative examination method for patients unwilling or unable to tolerate conventional gastroscopy.