Abstract
Background and Aim
Accurately differentiating malignant diseases from benign ones in patients having bile duct obstruction is of significant importance and remains a major clinical problem. This study investigated the diagnostic yield of endoscopic retrograde cholangiography/intraductal ultrasound (ERC/IDUS) in distinguishing malignant from benign bile duct obstruction and assessed some image findings from ERC/IDUS which might be useful in differentiation.
Methods
From January 2008 to January 2015, patients who underwent ERC/IDUS for bile duct obstruction were enrolled. Patient’s ERC/IDUS diagnosis was compared with the final diagnosis determined by pathologic findings and/or clinical outcome of follow-up.
Results
One hundred and ninety-three patients with bile duct obstruction were included. IDUS correctly identified 94 of 97 malignant diseases and 76 of 96 benign diseases with sensitivity, specificity, and accuracy rate of 96.91, 79.17, and 88.08 %, respectively. Additionally, the accuracy rate of IDUS for diagnosis of proximal bile duct obstruction was higher than that of distal bile duct obstruction (98.08 vs. 82.73 %, p = 0.006). Besides, there was a significant difference in the length at the obstruction site between benign and malignant diseases (13.76 ± 7.37 vs. 19.97 ± 11.37 mm, p < 0.001) as well as thickness of bile duct wall at the site of obstruction (3.06 ± 0.92 vs. 7.03 ± 3.70 mm, p = 0.008). Biliary wall thickness >7 mm without extrinsic compression had a positive predictive value (PPV) of 100 % for including malignancy, while length ≧20 mm demonstrated a PPV of 93.44 %.
Conclusions
ERC/IDUS is effective in distinguishing malignant from benign bile duct obstruction, thus helping in further clinical management.
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References
Fogel EL, Sherman S. How to improve the accuracy of diagnosis of malignant biliary strictures. Endoscopy. 1999;31:758–760.
Devereaux CE, Binmoeller KF. Endoscopic retrograde cholangiopancreatography in the next millennium. Gastrointest Endosc Clin N Am. 2000;10:117–133.
Fogel EL, deBellis M, McHenry L, et al. Effectiveness of a new long cytology brush in the evaluation of malignant biliary obstruction: a prospective study. Gastrointest Endosc. 2006;63:71–77.
Meister T, Heinzow HS, Woestmeyer C, et al. Intraductal ultrasound substantiates diagnostic of bile duct strictures of uncertain etiology. World J Gastroenterol. 2013;19:874–881.
Farrell RJ, Agarwal B, Brandwein SL, Underhill J, Chuttani R, Pleskow DK. Intraductal US is a useful adjunct to ERCP for distinguishing malignant from benign biliary strictures. Gastrointest Endosc. 2002;56:681–687.
Levy MJ, Baron TH, Clayton AC, et al. Prospective evaluation of advanced molecular markers and imaging techniques in patients with indeterminate bile duct strictures. Am J Gastroenterol. 2008;103:1263–1273.
Vazquez-Sequeiros E, Baron TH, Clain JE, et al. Evaluation of indeterminate bile duct strictures by intraductal US. Gastrointest Endosc. 2002;56:372–379.
Tamada K, Ueno N, Tomiyama T, et al. Characterization of biliary strictures using intraductal ultrasonography: comparison with percutaneous cholangioscopic biopsy. Gastrointest Endosc. 1998;47:341–349.
Meister T, Uphoff M-A, Heinecke A, Domagk D, Kunsch S, Lindhorst A. Novel score for prediction of malignant bile duct obstruction based on biochemical and clinical markers. Aliment Pharmacol Ther. 2015;41:877–887.
Choudari CP, Fogel E, Gottlieb SS, Lehman GA. Therapeutic biliary endoscopy. Endoscopy. 1998;30:163–173.
Stewart CJR, Mills PR, Carter R, et al. Brush cytology in the assessment of pancreatico-biliary strictures: a review of 406 cases. J Clin Pathol. 2001;54:449–455.
Schoefl R, Haefner M, Wrba F, et al. Forceps biopsy and brush cytology during endoscopic retrograde cholangiopancreatography for the diagnosis of biliary stenoses. Scand J Gastroenterol. 1997;32:363–368.
Sugiyama M, Atomi Y, Wada N, Kuroda A, Muto T. Endoscopic transpapillary bile duct biopsy without sphincterotomy for diagnosing biliary strictures: a prospective comparative study with bile and brush cytology. Am J Gastroenterol. 1996;91:465–467.
Kobayashi N, Sato T, Kato S, et al. Endoscopic treatment of postoperative benign bile duct stricture compared with malignant bile duct stricture. Hepatogastroenterology. 2014;61:1507–1518.
Yock P, Johnson E, Lonker D. Intravascular ultrasound: development and clinical potential. Am J Card Imaging. 1988;2:185–193.
Meyer CR, Chiang EH, Fechner KP, Fitting DW, Williams DM, Buda AJ. Feasibility of high-resolution intravascular ultrasonic imaging catheters. Radiology. 1988;168:113–116.
Silverstein FE, Martin RW, Kimmey MB, Jiranek GC, Franklin DW, Proctor A. Experimental evaluation of an endoscopic ultrasound probe; in vitro and in vivo canine studies. Gastroenterology. 1989;96:1058–1062.
Fujita N, Noda Y, Kobayashi G, et al. Intraductal ultrasonography (IDUS) for the diagnosis of biliopancreatic diseases. Best Pract Res Clin Gastroenterol. 2009;23:729–742.
Domagk D, Poremba C, Dietl KH, et al. Endoscopic transpapillary biopsies and intraductal ultrasonography in the diagnostics of bile duct strictures: a prospective study. Gut. 2002;51:240–244.
Menzel J, Poremba C, Dietl KH, Domschke W. Preoperative diagnosis of bile duct strictures–comparison of intraductal ultrasonography with conventional endosonography. Scand J Gastroenterol. 2000;35:77–82.
Tamada K, Ido K, Ueno N, Kimura K, Ichiyama M, Tomiyama T. Preoperative staging of extrahepatic bile duct cancer with intraductal ultrasonography. Am J Gastroenterol. 1995;90:239–246.
Rösch T, Meining A, Frühmorgen S, et al. A prospective comparison of the diagnostic accuracy of ERCP, MRCP, CT, and EUS in biliary strictures. Gastrointest Endosc. 2002;55:870–876.
Levy MJ, Heimbach JK, Gores GJ. Endoscopic ultrasound staging of cholangiocarcinoma. Curr Opin Gastroenterol. 2012;28:244–252.
Mohamadnejad M, DeWitt JM, Sherman S, et al. Role of eus for preoperative evaluation of cholangiocarcinoma: a large single-center experience. Gastrointest Endosc. 2011;73:71–78.
Heinzow HS, Kammerer S, Rammes C, Wessling J, Domagk D, Meister T. Comparative analysis of ERCP, IDUS, EUS and CT in predicting malignant bile duct strictures. World J Gastroenterol. 2014;20(30):10495–10503.
Krishna NB, Saripalli S, Safdar R, Agarwal B. Intraductal US in evaluation of biliary strictures without a mass lesion on CT scan or magnetic resonance imaging: significance of focal wall thickening and extrinsic compression at the stricture site. Gastrointest Endosc. 2007;66:90–96.
Acknowledgments
The authors thank all the staffs from the Digestive Endoscopy Centre, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, for their help in this study.
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Lu Chen and Yi Lu have contributed equally to this manuscript.
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Chen, L., Lu, Y., Wu, Jc. et al. Diagnostic Utility of Endoscopic Retrograde Cholangiography/Intraductal Ultrasound (ERC/IDUS) in Distinguishing Malignant from Benign Bile Duct Obstruction. Dig Dis Sci 61, 610–617 (2016). https://doi.org/10.1007/s10620-015-3896-1
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DOI: https://doi.org/10.1007/s10620-015-3896-1