Methods A total of 75 patients were studied with the routine MRCP(pre) and the hypotonic MRCP combined with water(post).

• 方法对75例疑有十二指肠憩室的患者先后进行低张喝水前.；后MRCP检查；比较二者的影像表现及其对十二指肠憩室显示的准确率。