体表超声对腹段食管的显示和正常值测量

Manifestation of abdonunal segment of esophagus bybody surface ultrasonograpliy and determination ofnormal value

采用体表超声在剑突－左肋弓缘斜切面扫查，显不良管裂孔呈类三角形强回声，作者称之为“犀鸟头盔”征，其背侧可确认为腹段食管。在高发区对２６８名高危人群普查，清晰显示者８２％；正常人壁厚均值为２．５８±０．５４ｍｍ，可显示长度为２３．７±５．６ｍｍ，９名可疑增厚者，５例最终确认食管有病变，其中２例食管癌、２例溃疡（周围水肿）、１例食管裂孔疝。超声对清晰显示者的诊断正确率达９８％。该方法为腹段食管疾病普查提供了新的手段。

canning over the oblique section of xiphoid-leftcostal margin by body surfaee ultrasonography wasadopted in the present study. The esophageal hiatusshowedtriangle-like strong echo which was called bythe author 'Hom Dill Casoue' . Its dorsal aspect couldbe confirnled as the abdominal segrnent of theesophagus. In a general survey of 268 cases of highrisk crowd in high incidenee area, 82% fZ17 cases)were manifested clearly. The mean wall thicknese was2.58 ± 0.54mm, and the mean length 23.7± 5.6mm.Among the 9 cases suspicious of increased thickness, 5were confiimed to have esophageal lesions. Amongthem there were 2 cases of esophageal carcinoma, and2 cases of inflammatory uleer with edema, and onecase of hiatal hernia. The aeeuracy rate of diagnosisfor those with clear manifestation by ultrasonographyreached as high as 98% (2 1 8 / 222 cases). This methodprovides a new measure for the general survey ofesophageal diseases in the abdonunal segment.