经内窥镜逆行胆管造影（ERCP）十二指肠乳头括约肌切开胆管取石术（EST）作为治疗胆管结石的一种常用方法，具有治疗效果确切、创伤小的优点......

AIM: To evaluate the diagnostic efficiency of endoscopic ultrasound (EUS) as the main imaging modality in patients with ......