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Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Remote Sensing for Natural Resources is the property of Remote Sensing for Natural Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Intrahepatic bile duct stone is a type of biliary system disease characterized by complex conditions and frequent recurrence, and traditional surgical treatment methods tend to cause various complications and have high requirements for surgical standards. Percutaneous transhepatic cholangioscopy (PTCS) is highly efficient in removing stones and is widely used in clinical practice, but there are also other medical techniques for the treatment of cholelithiasis. This article mainly discusses the constant development of PTCS and compares the efficacy of PTCS and other techniques in the treatment of cholelithiasis. [ABSTRACT FROM AUTHOR]