Clinical Endoscopy

Video of Issue

Combining low echo reduction and gain adjustment for enhanced pancreatic visualization in endoscopic ultrasound: Akashi Fujita, Masafumi Mizuide, Shomei Ryozawa, Yuki Tanisaka, Ryuhei Jinushi, Ryuichi Watanabe; Clin Endosc 2026;59(1):149-150. Published online July 1, 2025; DOI: https://doi.org/10.5946/ce.2024.358

PDF Supplementary Material

Citations

Citations to this article as recorded by

Needle Selection Strategy for EUS-Guided Tissue Acquisition Using 22-Gauge Needles in Small Pancreatic Solid Lesions
Akashi Fujita, Shomei Ryozawa, Masafumi Mizuide, Yuki Tanisaka, Suguru Ito, Ryuichi Watanabe, Ryosuke Hamamura, Yoshiki Matsuno
Internal Medicine.2026;[Epub] CrossRef

2,812 View
139 Download
1 Crossref

Review

Peroral cholangioscopy: past, present and future: Yuki Tanisaka, Robert Hawes; Clin Endosc 2025;58(3):360-369. Published online May 19, 2025; DOI: https://doi.org/10.5946/ce.2024.306

Abstract PDF

Endoscopic retrograde cholangiopancreatography (ERCP) is the gold standard for the evaluation of biliary strictures and the management of bile duct stones. However, standard ERCP techniques sometimes fail for both indications. In such situations, peroral cholangioscopy (POCS), which allows direct visualization of the bile duct, can play a significant role in diagnosis and treatment. Direct visualization using POCS can help differentiate between malignant and benign conditions and is more accurate in defining the extent of cholangiocarcinoma. Furthermore, POCS enables visually guided biopsies. Certain types of difficult bile duct stones, such as impacted and intrahepatic stones, require POCS for visually guided lithotripsy. Recent advancements in POCS will broaden its applicability and improve its diagnostic utility. In this review, we provide perspectives on the past, present, and future of POCS.

Citations

Citations to this article as recorded by

Clinical Utility and Safety of a Novel Ultraslim Catheter‐Type Peroral Cholangioscope/Pancreatoscope: A Single‐Center Case Series
Hiroyuki Kojima, Shuntaro Mukai, Atsushi Sofuni, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka, Kazumasa Nagai, Yukitoshi Matsunami, Hirohito Minami, Noriyuki Hirakawa, Kyoko Asano, Kento Shionoya, Kazuki Hama, Takao Itoi
DEN Open.2027;[Epub] CrossRef
Clinical Application of Ultra‐Slim Peroral Cholangioscopy for a Giant Common Bile Duct Stone: An Initial Experience
Yuta Kanazawa, Kazumasa Nagai, Noriyuki Hirakawa, Reina Tanaka, Ryosuke Tonozuka, Shuntaro Mukai, Yukitoshi Matsunami, Takao Itoi
Journal of Hepato-Biliary-Pancreatic Sciences.2026;[Epub] CrossRef
A novel sheath system to improve target access for preoperative mapping biopsy: A randomized trial to inform surgical planning
Hironori Aoi, Kentaro Yamao, Takuya Ishikawa, Yasuyuki Mizutani, Tadashi Iida, Kota Uetsuki, Yoshihisa Takada, Takeshi Yamamura, Kazuhiro Furukawa, Masanao Nakamura, Hiroki Kawashima
Surgical Endoscopy.2026; 40(3): 2268. CrossRef
Predictive factors for the necessity of peroral cholangioscopy-guided lithotripsy in the endoscopic treatment of cystic duct confluence stones: a retrospective study in Japan
Kazuaki Miyamoto, Takahisa Ogawa, Shinsuke Koshita, Yoshihide Kanno, Hiroaki Kusunose, Toshitaka Sakai, Keisuke Yonamine, Fumisato Kozakai, Haruka Okano, Yuto Matsuoka, Kento Hosokawa, Hidehito Sumiya, Kei Ito
Clinical Endoscopy.2026; 59(2): 280. CrossRef
Diagnostic Utility of Digital Single-Operator Cholangioscopy for Risk-Enriched Detection and Surveillance of Intraductal Neoplasms of the Bile Duct: SPY-SCREEN Study (with Videos)
Il Sang Shin, Jong Ho Moon, Yun Nah Lee, Jae Woo Park, Jun Chul Chung, Hee Kyung Kim, Tae Hoon Lee, Jae Kook Yang, Young Deok Cho, Sang-Heum Park
Digestive Diseases and Sciences.2026;[Epub] CrossRef
Endoscopic Technology for Diagnosis of Biliary Stricture with a Focus on Peroral Cholangioscopy: Challenges in Peroral Cholangioscopy-Based Management
Ko Tomishima, Hiroyuki Isayama, Toshio Fujisawa, Yusuke Takasaki, Taito Fukuma, Sho Takahashi, Shigeto Ishii
The Korean Journal of Pancreas and Biliary Tract.2026; 31(2): 42. CrossRef
Holmium Laser Lithotripsy for Pancreatobiliary Stones: Clinical and Regulatory Perspectives after New Technology Approval
Hyung Ku Chon, Se Woo Park
The Korean Journal of Pancreas and Biliary Tract.2026; 31(2): 73. CrossRef
Endoscopic Management of Pancreatobiliary Diseases in Patients with Surgically Altered Anatomy: A Perspective from Single-Balloon Enteroscopy
Yuki Tanisaka, Shomei Ryozawa, Masafumi Mizuide, Akashi Fujita, Suguru Ito, Ryuichi Watanabe, Ryosuke Hamamura, Yoshiki Matsuno
Digestion.2026; : 1. CrossRef
Comparison of EUS-guided treatment and balloon-enteroscopy-assisted endoscopic retrograde cholangiopancreatography for large bile duct stone removal in patients with surgically altered anatomy: A multicenter study
Ryota Sagami, Kiyoyuki Kobayashi, Makoto Hinokuchi, Kosuke Takahashi, Eisuke Ozawa, Takehiko Koga, Yusuke Ishida, Shotaro Kakehashi, Nao Fujimori, Yasuhisa Hiroshima, Issei Kojima, Hideki Mori, Naosuke Kuraoka, Hidefumi Nishikiori, Kazunari Murakami, Kazu
Endoscopic Ultrasound.2026; 15(3): 191. CrossRef
Cholangioscopy-guided ERCP: expanding diagnostic and therapeutic applications
Shengjie Yang, Hongyu Li
Frontiers in Medicine.2026;[Epub] CrossRef
Research Progress in the Diagnosis and Treatment of Intrahepatic Bile Duct Stones
道文熊
Advances in Clinical Medicine.2025; 15(09): 783. CrossRef

8,153 View
364 Download
8 Web of Science
11 Crossref

Original Article

22-gauge Co-Cr versus stainless-steel Franseen needles for endoscopic ultrasound-guided tissue acquisition in patients with solid pancreatic lesions: Yuki Tanisaka, Masafumi Mizuide, Akashi Fujita, Ryuhei Jinushi, Rie Shiomi, Takahiro Shin, Kei Sugimoto, Tomoaki Tashima, Yumi Mashimo, Shomei Ryozawa; Clin Endosc 2024;57(2):237-245. Published online January 26, 2024; DOI: https://doi.org/10.5946/ce.2023.011

Graphical Abstract Abstract PDF

Background
/Aims: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) using Franseen needles is reportedly useful for its high diagnostic yield. This study compared the diagnostic yield and puncturing ability of EUS-TA using 22-gauge cobalt-chromium (CO-Cr) needles with those of stainless-steel Franseen needles in patients with solid pancreatic lesions.
Methods
Outcomes were compared between the 22-gauge Co-Cr Franseen needle (December 2019 to November 2020; group C) and stainless-steel needle (November 2020 to May 2022; group S).
Results
A total of 155 patients (group C, 75; group S, 80) were eligible. The diagnostic accuracy was 92.0% in group C and 96.3% in group S with no significant intergroup differences (p=0.32). The rate of change in the operator (from training fellows to experts) was 20.0% (15/75) in group C and 7.5% (6/80) in group S. Stainless-steel Franseen needles showed less inter-operator difference than Co-Cr needles (p=0.03).
Conclusions
Both Co-Cr and stainless-steel Franseen needles showed high diagnostic ability. Stainless-steel Franseen needles are soft and flexible; therefore, the range of puncture angles can be widely adjusted, making them suitable for training fellows to complete the procedure.

Citations

Citations to this article as recorded by

Progress and Challenges in Joining for Precision Endoscope Fabrication
Peiquan Xu, Xiaohao Zheng, Leijun Li, Ziyi Wang
Sensors.2026; 26(9): 2828. CrossRef
Needle Selection Strategy for EUS-Guided Tissue Acquisition Using 22-Gauge Needles in Small Pancreatic Solid Lesions
Akashi Fujita, Shomei Ryozawa, Masafumi Mizuide, Yuki Tanisaka, Suguru Ito, Ryuichi Watanabe, Ryosuke Hamamura, Yoshiki Matsuno
Internal Medicine.2026;[Epub] CrossRef
The correlation between tumoral CD8 expression and clinical course in patients with unresectable pancreatic cancer using tissue samples acquired by endoscopic ultrasound‐guided tissue acquisition
Yuki Tanisaka, Shomei Ryozawa, Masafumi Mizuide, Akashi Fujita, Ryuhei Jinushi, Ryuichi Watanabe, Ryo Sato, Masanori Yasuda
Journal of Hepato-Biliary-Pancreatic Sciences.2025; 32(2): 132. CrossRef
Optimal tissue acquisition method for pancreatic mass
Kwang Hyun Chung, Sang Hyub Lee
Digestive Endoscopy.2025; 37(6): 629. CrossRef
Endosonographic-guided tissue acquisition for solid pancreatic lesions: Have we reached the ceiling?
Natalie Cosgrove
Gastrointestinal Endoscopy.2025; 102(5): 714. CrossRef
Curved puncture technique using a flexible stainless-steel needle in endoscopic ultrasound-guided hepaticogastrostomy
Haruo Miwa, Yuichi Suzuki, Shotaro Tsunoda, Kazuki Endo, Ritsuko Oishi, Hiromi Tsuchiya, Shin Maeda
Endoscopy.2024; 56(S 01): E1082. CrossRef

6,685 View
182 Download
6 Web of Science
6 Crossref

Review

Single-balloon enteroscopy-assisted endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy: a technical review: Yuki Tanisaka, Masafumi Mizuide, Akashi Fujita, Rie Shiomi, Takahiro Shin, Kei Sugimoto, Shomei Ryozawa; Clin Endosc 2023;56(6):716-725. Published online April 17, 2023; DOI: https://doi.org/10.5946/ce.2023.023

Abstract PDF Supplementary Material

Endoscopic retrograde cholangiopancreatography (ERCP) in patients with surgically altered anatomy is technically challenging. For example, scope insertion, selective cannulation, and intended procedures, such as stone extraction or stent placement, can be difficult. Single-balloon enteroscopy (SBE)-assisted ERCP has been used to effectively and safely address these technical issues in clinical practice. However, the small working channel limits its therapeutic potential. To address this shortcoming, a short-type SBE (short SBE) with a working length of 152 cm and a channel of 3.2 mm diameter has recently been introduced. Short SBE facilitates the use of larger accessories to complete certain procedures, such as stone extraction or self-expandable metallic stent placement. Despite the development in the SBE endoscope, various steps have to be overcome to successfully perform such procedure. To improve success, the challenging factors of each procedure must be identified. At the same time, endoscopists need to be mindful of adverse events, such as perforation, which can arise due to adhesions specific to the surgically altered anatomy. This review discussed technical tips regarding SBE-assisted ERCP in patients with surgically altered anatomy to increase success and reduce the risk of adverse events associated with ERCP.

Citations

Citations to this article as recorded by

Migration of Fish Bones to the Bile Duct Following Hepaticojejunostomy
Kenta Yoshida, Tsuyoshi Hayashi, Kazuki Hama, Ryo Ando, Haruka Toyonaga, Tatsuya Ishii, Toshifumi Kin, Masayo Motoya, Kuniyuki Takahashi, Yuko Omori, Satoshi Ota, Akio Katanuma
DEN Open.2026;[Epub] CrossRef
Colonoscopy-assisted preplacement of guide tube for endoscopic retrograde cholangiopancreatography in patients with complex surgically altered anatomy
Lu Xie, Yangyang Zheng, Qiaoxian He, Lei Lu, Weigang Gu, Zheng Jin, Qifeng Lou, Jianfeng Yang, Xiaofeng Zhang, Hangbin Jin
Surgical Endoscopy.2026; 40(6): 5220. CrossRef
Comparison of EUS-guided treatment and balloon-enteroscopy-assisted endoscopic retrograde cholangiopancreatography for large bile duct stone removal in patients with surgically altered anatomy: A multicenter study
Ryota Sagami, Kiyoyuki Kobayashi, Makoto Hinokuchi, Kosuke Takahashi, Eisuke Ozawa, Takehiko Koga, Yusuke Ishida, Shotaro Kakehashi, Nao Fujimori, Yasuhisa Hiroshima, Issei Kojima, Hideki Mori, Naosuke Kuraoka, Hidefumi Nishikiori, Kazunari Murakami, Kazu
Endoscopic Ultrasound.2026; 15(3): 191. CrossRef
Clinical outcomes of endoscopic retrograde cholangiopancreatography after Billroth II anastomosis: a comparison of gastroscope and duodenoscope
Kang Ho Lee, Gwang Hyo Yim, Jimin Han, Han Taek Jeong
BMC Gastroenterology.2025;[Epub] CrossRef
Peroral cholangioscopy: past, present and future
Yuki Tanisaka, Robert Hawes
Clinical Endoscopy.2025; 58(3): 360. CrossRef
Efficacy and safety of cap-assisted colonoscopy in endoscopic retrograde cholangiopancreatography for patients after Billroth II gastrectomy
Chun-Xiao Hu, Sheng-Yue Zhou, Xiao-Hua Ye
World Chinese Journal of Digestology.2025; 33(9): 707. CrossRef
Balloon-assisted ERCP for bile duct stones in surgically altered anatomy: current techniques, devices, and evolving strategies
Haruka Toyonaga, Makoto Masaki, Arata Oka, Hidetoshi Nakata, Shoji Takayama, Tatsuya Nakagawa, Takuya Takayama, Masahiro Orino, Hironao Matsumoto, Takeshi Yamashina, Masaaki Shimatani
Therapeutic Advances in Gastroenterology.2025;[Epub] CrossRef
Comparison of clinical outcomes for single- and double-balloon enteroscope-assisted endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy
Sung Yong Han, Min Jae Yang, Kyong Joo Lee, Jonghyun Lee, Se Woo Park
World Journal of Gastroenterology.2025;[Epub] CrossRef
Successful intubation of the periampullary diverticulum in post-Billroth II method-reconstructed intestinal tract using clip-and-snare method with a pre-looping technique
Makoto Yamamoto, Kunihiro Tsuji, Shigetsugu Tsuji, Shigenori Wakita, Hiroyoshi Nakanishi, Haruhiko Shugo, Naohiro Yoshida, Hisashi Doyama
Clinical Endoscopy.2025; 58(6): 941. CrossRef
Anatomical Alterations and Endoscopic Strategies After Upper Gastrointestinal Surgery
Byung Chul Jin, Seung Young Seo
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2025; 25(4): 319. CrossRef
Advanced technical tips and recent insights in ERCP using balloon‐assisted endoscopy
Masaaki Shimatani, Toshiyuki Mitsuyama, Takeshi Yamashina, Masahiro Takeo, Shunsuke Horitani, Natsuko Saito, Hironao Matsumoto, Masahiro Orino, Masataka Kano, Takafumi Yuba, Takuya Takayama, Tatsuya Nakagawa, Shoji Takayama
DEN Open.2024;[Epub] CrossRef
Efficacy of texture and color enhancement imaging for short‐type single‐balloon enteroscopy‐assisted biliary cannulation in patients with Roux‐en‐Y gastrectomy: Multicenter study (with video)
Yuki Tanisaka, Mamoru Takenaka, Masafumi Mizuide, Akashi Fujita, Ryuhei Jinushi, Takahiro Shin, Kei Sugimoto, Ken Kamata, Kosuke Minaga, Shunsuke Omoto, Tomohiro Yamazaki, Shomei Ryozawa
Digestive Endoscopy.2024; 36(9): 1030. CrossRef
Progress in minimally invasive treatment of biliary pancreatic duct obstruction after digestive tract reconstruction by endoscopic retrograde cholangiopancreatography
Ru-Yi Wang, Zhen Fan
World Chinese Journal of Digestology.2024; 32(7): 490. CrossRef
Endoscopic Management of Biliary and Pancreatic Pathologies in Roux-en-Y Gastric Bypass Patients: Development of a Treatment Algorithm Based on 9-Year Experience
Laurent Monino, Lancelot Marique, Yannick Deswysen, Maximilien Thoma, Pierre H. Deprez, Pierre Goffette, Benoit Navez, Tom G. Moreels
Obesity Surgery.2024; 34(10): 3717. CrossRef
Use of short single-balloon enteroscopy in patients with surgically altered anatomy: a single-center experience
Songming Ding, Shanjie Dong, Hengkai Zhu, Yiting Hu, Shusen Zheng, Qiyong Li
Scientific Reports.2024;[Epub] CrossRef
Emergency Laparoscopic Common Bile Duct Exploration for Acute Cholangitis in Cases with Difficulty with an Endoscopic Approach
Naoki Matsumoto, Isao Sato, Yoshihide Chino, Makoto Mizutani, Tomotake Tabata, Tomoyuki Tagi, Shigeyoshi Shimaoka, Takafumi Oe
The Japanese Journal of Gastroenterological Surgery.2024; 57(11): 535. CrossRef
Development and evaluation of artificial organ models for ERCP training in patients with surgically altered anatomies
Kai Koch, Benedikt Duckworth-Mothes, Ulrich Schweizer, Karl-Ernst Grund, Tom G. Moreels, Alfred Königsrainer, Dörte Wichmann
Scientific Reports.2023;[Epub] CrossRef
Simplified single-session EUS-guided transhepatic antegrade stone removal for management of choledocholithiasis in patients with surgically altered anatomy
Tingting Yu, Suning Hou, Haiming Du, Wei Zhang, Jiao Tian, Yankun Hou, Jun Yao, Senlin Hou, Lichao Zhang
Gastroenterology Report.2023;[Epub] CrossRef

9,367 View
429 Download
14 Web of Science
18 Crossref

First
Prev
Page of 1
Next
Last

Search