Abstract
Background
There continues to be controversy regarding the optimal screening modality in patients with symptomatic cholelithiasis and suspected common bile duct (CBD) stones. The aim of this study was to assess the diagnostic accuracy of laparoscopic ultrasonography (LUS) compared to magnetic resonance cholangiopancreatography (MRCP).
Methods
Both LUS and MRCP were performed to evaluate the CBD stones and biliary anatomy in 200 patients undergoing laparoscopic surgery. Pre-, intra-, and postoperative data were collected prospectively and reviewed retrospectively.
Results
Coexisting CBD stones were identified in 64 of 200 (32%) patients by surgical exploration or postoperative ERCP. For the detection of CBD stones, LUS yielded a positive predictive value of 100%, a negative predictive value of 99.3%, a sensitivity of 98.4%, and a specificity of 100%. Preoperative MRCP had a positive predictive value of 87.9%, a negative predictive value of 95.5%, a sensitivity of 90.6%, and a specificity of 94.1%. The non-random concordance between MRCP and LUS was considered to be excellent with a kappa coefficient of 0.92 (p < 0.01).
Conclusions
LUS can reduce the need for MRCP examination and can become the primary imaging method for the evaluation of CBD stones in laparoscopic surgery.
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Ying Luo proposed and performed the study and wrote the paper. Tao Yang performed the study and revised the paper, Qiang Yu performed the study and collected data, and Yu Zhang performed the study. All the authors contributed to the design and interpretation of the study and to further drafts. Ying Luo is the guarantor.
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The study was conducted according to the ethical guidelines of the Helsinki Declaration and was approved by the Ethics Committee of Chinese PLA General Hospital, Bei**g, China.
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The authors declare that they have no conflict of interest.
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Luo, Y., Yang, T., Yu, Q. et al. Laparoscopic Ultrasonography Versus Magnetic Resonance Cholangiopancreatography in Laparoscopic Surgery for Symptomatic Cholelithiasis and Suspected Common Bile Duct Stones. J Gastrointest Surg 23, 1143–1147 (2019). https://doi.org/10.1007/s11605-018-3949-9
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DOI: https://doi.org/10.1007/s11605-018-3949-9