吉岡 二三¹, 北村 次男², 田中 幸子², 山本 貴代美², 今岡 知子², 安永 幸二郎¹

Fumi YOSHIOKA¹, Tsugio KITAMURA², Sachiko TANAKA², Kiyomi YAMAMOTO², Tomoko IMAOKA², Kojirou YASUNAGA¹

¹関西医科大学第1内科, ²大阪府立成人病センター

¹The First Department of Internal Medicine, Kansai Medical University, ²The Center for Adult Diseases

キーワード : Ultrasonography, Lymph node, Common hepatic artery

To evaluate the accuracy of measuring #8 by ultrasonography (US) , we compared the operative findings with the each sonogram. The subjects were 51 cases with gastric cancer and esophageal cancer, etc. These had been examined by US during the period between October 1989 and August 1990 in the center for adult diseases, Osaka. We identified #8 in 98% (40/41) of true positive, in 80% (8/10) of true negative and in 94% of overall accuracy. Each of 40 cases could be compared the measurement value of resected specimen with the sonographical measurement value. As a result, we found that the longest dameter (mean 17 mm) was showed the longest axis by US with an error value of 0±4 mm and that the shortest diameter (mean 5 mm) was showed the short axis in the longitudinal section with an error value of 0±1mm. The short axis in transverse section didn't show it generally owing to the change of the angle of incidence in the ultrasound by a tilting scan. We believe that the result of the ultrasonic identification and measurement of #8 are reliable.