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Fig. 1 | BMC Surgery

Fig. 1

From: Ultrasound-guided percutaneous transhepatic one-step biliary fistulation combined with rigid choledochoscopy for recurrent hepatolithiasis

Fig. 1

PTOBF surgical procedure. A Puncture plan based on preoperative imaging findings. B Intraoperative US exploration to determine the puncture point. C After US-guided puncture, bile was seen on retraction to represent successful puncture. D US-assisted judgment of guidewire placement position. E US-guided dilator gradually dilates the sinus. F Placement of 14Fr protective sheath. G US-assisted choledochoscopic stone extraction. H Placement of a “J” shaped drain

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BMC Surgery

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