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Journal of Medical Ultrasonics

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1992 - Vol.19

Vol.19 No.05

Original Article(原著)

(0321 - 0328)

総肝動脈幹リンパ節(#8リンパ節)のエコー診断 ―切除例による存在診断および測定精度の検討―

Ultrasonic Diagnosis of the Lymph Node around Common Hepatic Artery (#8) :The Accuracy in Detecting and Measuring #8 by Comparison with the Resected specimen

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.