近十多年来,胃的双重对比造影经过不断的改进和发展,已经成为早期胃癌X线检查的主要方法之一。胃的双重对比造影能否获得满意的效果,首先是选取一种比较好的造影剂。近一年来,我们根据现有的条件,对胃双重对比造影用的硫酸钡制剂(简称造影剂)进行了初步探讨,做过几次改进,取得初步经验。此简介如下: Over the past decade or so, the double contrast contrast of the stomach through continuous improvement and development, has become one of the main methods of early gastric cancer X-ray examination. Stomach double contrast can obtain satisfactory results, the first is to choose a better contrast agent. In the past year, according to the existing conditions, we conducted a preliminary discussion on the barium sulfate preparation (referred to as contrast agent) used in double contrast gastric imaging. We made several improvements and obtained preliminary experience. This introduction is as follows: