摘要目的：探讨磁控胶囊内镜（ MGCE）在胃部检查中的临床应用价值。方法回顾性分析2014年1月至2016年2月接受MGCE检查的500例患者的临床数据资料，通过观察MGCE对胃部病变的检出率、通过时间、不良反应事件、清晰度和可视度，以及对比 MGCE 与食管胃十二指肠镜（ EGD）对胃部局灶性病变检出情况，分析MGCE对胃部检查的可行性和安全性。结果 MGCE胃部病变检出率为57?8％（289／500），胃部平均通过时间（106?0±101?1） min。胃部总体清晰度有效率为91?8％，可视度满意率为98?8％。与EGD在局灶性病变检出情况进行对比，可观察到MGCE检出病变能力好，其敏感度、特异度和符合率分别为92?0％、85?7％和88?3％。本研究中除1例出现胶囊滞留并发症外（0?2％）无其他严重并发症和不良反应事件发生。结论 MGCE对于胃部疾病的检测具有较高的检出率和准确性，且性能稳定安全，可作为胃部疾病有效的检查工具。

abstractsObjective To investigate the clinical application value of magnetically guided capsule endoscopy ( MGCE) to stomach examination. Methods Data of 500 patients who received MGCE examina?tion from January 2014 to February 2016 in our hospital were retrospectively analyzed. The feasibility and safety of MGCE were studied by analyzing the detection rate of gastric lesions, transit time, adverse events, clarity and visibility, in comparison with esophagogastroduodenoscopy( EGD) . Results The lesion detecting rate was 57?8%(289/500), the average transit time was (106?0±101?1)min. Overall effective rate of cleanliness was 91?8%. The visibility satisfaction rate was 98?8%. Compared with EGD, MGCE had good detection ability in stomach focal lesions. The sensitivity,specificity and accuracy were 92?0%, 85?7% and 88?3%,respectively. Except for capsule retention occurred in one patient, no other complication happened. Conclusion MGCE, stable and safe, shows high detection and accuracy rates for gastric diseases, and can be used as an effective examination tool.