Online Journal
IF値: 1.878(2021年)→1.8(2022年)


Journal of Medical Ultrasonics

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1991 - Vol.18

Vol.18 No.09

Original Article(原著)

(0871 - 0878)


Usefulness of Abdominal Pressure Method and Cholagogue Method in Sonography in Patient with Slight Dilated Bile Duct

陳 敏華2, 丁子 清1, 佐藤 幸彦1, 小笠原 和宏1, 岸本 理和1, 久保 公三1, 清水 匡1, 藤田 信行1, 入江 五朗1

Minhua CHEN2, Kiyosi CHOIJI1, Yukihiko SATO1, Kazuhiro OGASAWARA1, Riwa KISHIMOTO1, Kozo KUBO1, Tadashi SHIMIZU1, Nobuyuki FUJITA1, Goro IRIE1

1北海道大学医学部放射線医学教室, 2北京医科大学腫瘤研究所

1Department of Clinical Radiology, Hokkaido University School of Medicine, 2

キーワード : Ultrasonography, Bile duct, Dilatation of bile duct, Cholagogue

Ultrasonography (US) with additional methods consisted of abdominal pressure method (ACM) and cholagogue method (CM) was applied to those cases devided into three groups: 27 cases with stenosis or obstruction in the extrahepatic bile duct (EHBD) stenotic group; 37 cases without stenosis or obstruction in EHBD non-stenotic group; 37 cases of normal volunteer control group. All the cases belonging to stenotic or non-stenotic group had slightly dilated EHBD which diameter ranged from 7 to 18 mm. While decrease in EHBD diameter after ACM occurred in 72% (26⁄36 cases) of non-stenotic group, diameter of EHBD in 50% (13⁄26) of stenotic group showed increase and in 19% (5⁄26) showed no change. Control groups after ACM, having smaller diameter of EHBD in comparison with that of cases belonging to other two groups, showed no change in 70% (26⁄37) and decrease in 27% (10⁄37). After CM, stenotic group showed increase or no change in diameter of EHBD in 73% (11⁄15), while non-stenotic group showed decrease in 94% (15⁄16); a half of control group showed decrease and the other half showed no change. The Chi-square test proved significant association between the groups and the change in EHBD diameter after ACM as well as after CM (both p<0.001). This study also revealed that EHBD of the cases underwent cholecystectomy well, reacting the additional methods decrease in diameter of EHBD was observed in about 90% after ACM as well as after CM. A criteria, judging a cases without decrease in EHBD diameter after each of the additional method as having stenosis in EHBD, yielded sensitivities of 69% after ACM and of 73% after CM; specificities of 72% after ACM and of 94% after CM; accuracies of 71% after ACM and 84% after CM. The US with additional methods, which are performed easily and with little pain or effort of the patient, are useful in screening of stenotic lesion at EHBD in those cases having slightly dilated EHBD.