Contrast-enhanced endoscopic ultrasonography in gallbladder diseases

Y. Hirooka, Y. Naitoh, H. Goto, A. Ito, S. Hayakawa, Y. Watanabe, Y. Ishiguro, S. Kojima, S. Hashimoto, T. Hayakawa

研究成果: ジャーナルへの寄稿学術論文査読

60 被引用数 (Scopus)

抄録

Background: The purpose of this study was to investigate the usefulness of contrast-enhanced endoscopic ultrasonography in gallbladder diseases. Methods: Subjects were 38 patients including 12 with adenocarcinoma, 2 adenosquamous carcinoma, 6 cholesterol polyp, 10 cholecystitis, and 8 adenomyomatosis. After endoscopic ultrasonography, sonicated albumin was intravenously injected and the enhanced effect on images of these lesions was determined. For malignancies we compared diagnostic accuracy (T factor, TNM classification) of endoscopic ultrasonography and contrast-enhanced endoscopic ultrasonography. Vascularity as shown by contrast-enhanced endoscopic ultrasonography and angiograms was compared. Results: Enhancement was observed in 11 patients with adenocarcinoma but not of those with adenosquamous carcinoma or cholesterol polyp. Angiography provided hypervascular images for all cases of adenocarcinoma, but all other lesions were hypovascular. In one case of adenocarcinoma, 3 cases of adenomyomatosis, and 8 cases of cholecystitis, there was a discrepancy between contrast- enhanced endoscopic ultrasonography images and angiograms with regard to vascularity. The accuracy of depth of tumor invasion for endoscopic ultrasonography was 78.6% (11 of 14) versus 92.9% (13 of 14) for contrast- enhanced endoscopic ultrasonography. Conclusion: Contrast-enhanced endoscopic ultrasonography is useful in the diagnosis of gallbladder lesions.

本文言語英語
ページ(範囲)406-410
ページ数5
ジャーナルGastrointestinal endoscopy
48
4
DOI
出版ステータス出版済み - 1998
外部発表はい

All Science Journal Classification (ASJC) codes

  • 放射線学、核医学およびイメージング
  • 消化器病学

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