慢性萎缩性胃炎(简称萎胃)利用胃粘膜活检观察粘膜病变是否改善作为判定萎胃疗效进步或退步的方法或标准还存在着困难,因治疗前后胃粘膜活检不能做到精确无误地在同一部位取材,而萎胃并非全部胃窦部都呈一致性萎缩改变,常呈局灶性及跳跃式分布,邻近粘膜可无萎缩性改变。加之粘膜活检很局限,仅代表局部胃粘膜的情况,不能代表全胃粘膜的 Chronic atrophic gastritis (referred to as wilt) using gastric mucosal biopsy to observe whether mucosal lesions improve as a method or standard to determine the effectiveness of wilt or progressive regression still difficult, because before and after treatment gastric mucosal biopsy can not be accurate in the same site The results showed that not all of the gastric antrum showed atrophic changes, but showed a focal and jumping distribution, and there was no atrophic change in the adjacent mucosa. In addition, the mucosal biopsy is very limited, it only represents the situation of the local gastric mucosa, can not represent the entire gastric mucosa