Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging

Background/Aims Endoscopic ultrasonography (EUS) is warranted when cross-sectional imaging demonstrates common bile duct (CBD) dilatation without identifiable causes. This study aimed to assess the diagnostic performance of EUS in CBD dilatation of unknown etiology. Methods Retrospective review of p...

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Main Authors: Nonthalee Pausawasdi, Penprapai Hongsrisuwan, Lubna Kamani, Kotchakon Maipang, Phunchai Charatcharoenwitthaya
Format: Article
Language:English
Published: Korean Society of Gastrointestinal Endoscopy 2022-01-01
Series:Clinical Endoscopy
Subjects:
Online Access:http://e-ce.org/upload/pdf/ce-2021-122.pdf
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author Nonthalee Pausawasdi
Penprapai Hongsrisuwan
Lubna Kamani
Kotchakon Maipang
Phunchai Charatcharoenwitthaya
author_facet Nonthalee Pausawasdi
Penprapai Hongsrisuwan
Lubna Kamani
Kotchakon Maipang
Phunchai Charatcharoenwitthaya
author_sort Nonthalee Pausawasdi
collection DOAJ
description Background/Aims Endoscopic ultrasonography (EUS) is warranted when cross-sectional imaging demonstrates common bile duct (CBD) dilatation without identifiable causes. This study aimed to assess the diagnostic performance of EUS in CBD dilatation of unknown etiology. Methods Retrospective review of patients with dilated CBD without definite causes undergoing EUS between 2012 and 2017. Results A total of 131 patients were recruited. The mean age was 63.2±14.1 years. The most common manifestation was abnormal liver chemistry (85.5%). The mean CBD diameter was 12.2±4.1 mm. The area under the receiver operating characteristic curve (AUROC) of EUS-identified pathologies, including malignancy, choledocholithiasis, and benign biliary stricture (BBS), was 0.98 (95% confidence interval [CI], 0.95-1.00). The AUROC of EUS for detecting malignancy, choledocholithiasis, and BBS was 0.91 (95% CI, 0.85-0.97), 1.00 (95% CI, 1.00-1.00), and 0.93 (95% CI, 0.87-0.99), respectively. Male sex, alanine aminotransferase ≥3× the upper limit of normal (ULN), alkaline phosphatase ≥3× the ULN, and intrahepatic duct dilatation were predictors for pathological obstruction, with odds ratios of 5.46 (95%CI, 1.74-17.1), 5.02 (95% CI, 1.48-17.0), 4.63 (95% CI, 1.1-19.6), and 4.03 (95% CI, 1.37-11.8), respectively. Conclusions EUS provides excellent diagnostic value in identifying the etiology of CBD dilatation detected by cross-sectional imaging.
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spelling doaj.art-5e9f52b22e8c4220bcc7d4478e31d1b32023-12-02T22:22:58ZengKorean Society of Gastrointestinal EndoscopyClinical Endoscopy2234-24002234-24432022-01-0155112212710.5946/ce.2021.1227604Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional ImagingNonthalee Pausawasdi0Penprapai Hongsrisuwan1Lubna Kamani2Kotchakon Maipang3Phunchai Charatcharoenwitthaya4 Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, ThailandBackground/Aims Endoscopic ultrasonography (EUS) is warranted when cross-sectional imaging demonstrates common bile duct (CBD) dilatation without identifiable causes. This study aimed to assess the diagnostic performance of EUS in CBD dilatation of unknown etiology. Methods Retrospective review of patients with dilated CBD without definite causes undergoing EUS between 2012 and 2017. Results A total of 131 patients were recruited. The mean age was 63.2±14.1 years. The most common manifestation was abnormal liver chemistry (85.5%). The mean CBD diameter was 12.2±4.1 mm. The area under the receiver operating characteristic curve (AUROC) of EUS-identified pathologies, including malignancy, choledocholithiasis, and benign biliary stricture (BBS), was 0.98 (95% confidence interval [CI], 0.95-1.00). The AUROC of EUS for detecting malignancy, choledocholithiasis, and BBS was 0.91 (95% CI, 0.85-0.97), 1.00 (95% CI, 1.00-1.00), and 0.93 (95% CI, 0.87-0.99), respectively. Male sex, alanine aminotransferase ≥3× the upper limit of normal (ULN), alkaline phosphatase ≥3× the ULN, and intrahepatic duct dilatation were predictors for pathological obstruction, with odds ratios of 5.46 (95%CI, 1.74-17.1), 5.02 (95% CI, 1.48-17.0), 4.63 (95% CI, 1.1-19.6), and 4.03 (95% CI, 1.37-11.8), respectively. Conclusions EUS provides excellent diagnostic value in identifying the etiology of CBD dilatation detected by cross-sectional imaging.http://e-ce.org/upload/pdf/ce-2021-122.pdfcommon bile ductdiagnostic imagingendosonographythree-dimensional imaging
spellingShingle Nonthalee Pausawasdi
Penprapai Hongsrisuwan
Lubna Kamani
Kotchakon Maipang
Phunchai Charatcharoenwitthaya
Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
Clinical Endoscopy
common bile duct
diagnostic imaging
endosonography
three-dimensional imaging
title Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
title_full Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
title_fullStr Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
title_full_unstemmed Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
title_short Diagnostic Value of Endoscopic Ultrasonography for Common Bile Duct Dilatation without Identifiable Etiology Detected from Cross-Sectional Imaging
title_sort diagnostic value of endoscopic ultrasonography for common bile duct dilatation without identifiable etiology detected from cross sectional imaging
topic common bile duct
diagnostic imaging
endosonography
three-dimensional imaging
url http://e-ce.org/upload/pdf/ce-2021-122.pdf
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