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Koichiro Tsutsumi · SciRah

Researcher profile · Semantic Scholar

Koichiro Tsutsumi

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Koichiro Tsutsumi — researcher profile on SciRah

h-index: 23
Works: 202
Citations: 2,313

Most-cited papers

Endoscopic balloon dilatation for benign hepaticojejunostomy anastomotic stricture using short double-balloon enteroscopy in patients with a prior Whipple’s procedure: a retrospective study
Sho Mizukawa, Koichiro Tsutsumi, Hironari Kato, Shinichiro Muro +6 more
2018BMC Gastroenterology53 citations Open access
Semantic Scholar
Utility of serum DNA as a marker for KRAS mutations in pancreatic cancer tissue.
Soichiro Ako, K. Nouso, Hideaki Kinugasa, Chihiro Dohi +11 more
2017Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]46 citations
Semantic Scholar
Extracellular vesicle-shuttled miRNAs as a diagnostic and prognostic biomarker and their potential roles in gallbladder cancer patients
Eijiro Ueta, Koichiro Tsutsumi, Hironari Kato, H. Matsushita +5 more
2021Scientific Reports39 citations Open access
Semantic Scholar
Comparison Between Endoscopic Biliary Stenting Combined with Balloon Dilation and Balloon Dilation Alone for the Treatment of Benign Hepaticojejunostomy Anastomotic Stricture
T. Tomoda, Hironari Kato, Kazuya Miyamoto, Yousuke Saragai +11 more
2019Journal of Gastrointestinal Surgery34 citations
Semantic Scholar
Dynamic computed tomography is useful for prediction of pathological grade in pancreatic neuroendocrine neoplasm
S. Horiguchi, Hironari Kato, H. Shiraha, Koichiro Tsutsumi +11 more
2017Journal of Gastroenterology and Hepatology27 citations
Semantic Scholar
Efficacy of double‐balloon enteroscopy‐assisted endoscopic balloon dilatation combined with stent deployment for hepaticojejunostomy anastomotic stricture
T. Tomoda, Hironari Kato, T. Ueki, T. Ogawa +6 more
2021Digestive Endoscopy24 citations
Semantic Scholar
Long‐term outcomes and risk factors of biliary stent dysfunction after endoscopic double stenting for malignant biliary and duodenal obstructions
Kazuyuki Matsumoto, Hironari Kato, Koichiro Tsutsumi, Sho Mizukawa +9 more
2017Digestive Endoscopy23 citations
Semantic Scholar
MicroRNA-451a inhibits gemcitabine-refractory biliary tract cancer progression by suppressing the MIF-mediated PI3K/AKT pathway
Taisuke Obata, Koichiro Tsutsumi, Eijiro Ueta, Takashi Oda +10 more
2023Molecular Therapy: Nucleic Acids22 citations Open access
Semantic Scholar
Double guidewire technique stabilization procedure for endoscopic ultrasound-guided hepaticogastrostomy involving modifying the guidewire angle at the insertion site
Yuki Fujii, Hironari Kato, Hitomi Himei, Eijiro Ueta +7 more
2022Surgical Endoscopy22 citations
Semantic Scholar
Potential Factors Affecting Results of Short-Type Double-Balloon Endoscope-Assisted Endoscopic Retrograde Cholangiopancreatography
Daisuke Uchida, Koichiro Tsutsumi, Hironari Kato, Akihiro Matsumi +5 more
2019Digestive Diseases and Sciences22 citations
Semantic Scholar
Randomized trial comparing the 25G and 22G Franseen needles in endoscopic ultrasound‐guided tissue acquisition from solid pancreatic masses for adequate histological assessment
T. Tomoda, Hironari Kato, Yuuki Fujii, Tatsuhiro Yamazaki +7 more
2021Digestive Endoscopy21 citations Open access
Semantic Scholar
Effectiveness of data-augmentation on deep learning in evaluating rapid on-site cytopathology at endoscopic ultrasound-guided fine needle aspiration
Yuki Fujii, Daisuke Uchida, Ryosuke Sato, Taisuke Obata +15 more
2024Scientific Reports19 citations Open access
Semantic Scholar
Predictive factors for outcomes of patients undergoing endoscopic therapy for bile leak after hepatobiliary surgery
Shuntaro Yabe, Hironari Kato, Sho Mizukawa, Yutaka Akimoto +8 more
2017Digestive Endoscopy18 citations
Semantic Scholar
Balloon Enteroscopy-Assisted Endoscopic Retrograde Cholangiopancreatography for the Treatment of Common Bile Duct Stones in Patients with Roux-en-Y Gastrectomy: Outcomes and Factors Affecting Complete Stone Extraction
Taisuke Obata, Koichiro Tsutsumi, Hironari Kato, T. Ueki +10 more
2021Journal of Clinical Medicine17 citations Open access
Semantic Scholar
Usefulness of a newly designed plastic stent for endoscopic re-intervention in patients with malignant hilar biliary obstruction
T. Tomoda, Hironari Kato, Hirofumi Kawamoto, Shinichiro Muro +6 more
2017Endoscopy15 citations
Semantic Scholar
Efficacy of low dose rectal diclofenac for preventing post‐endoscopic retrograde cholangiopancreatography pancreatitis: Propensity score‐matched analysis
T. Tomoda, Hironari Kato, Kazuya Miyamoto, Akihiro Matsumi +9 more
2020Digestive Endoscopy13 citations Open access
Semantic Scholar
Utility of a 21-gauge Menghini-type biopsy needle with the rolling method for an endoscopic ultrasound-guided histological diagnosis of autoimmune pancreatitis: a retrospective study
Koichiro Tsutsumi, T. Ueki, Yasuhiro Noma, Kunihiro Omonishi +5 more
2021BMC Gastroenterology12 citations Open access
Semantic Scholar
Treatment outcomes, including risk factors of stone recurrence, for hepatolithiasis using balloon-assisted endoscopy in patients with hepaticojejunostomy (with video)
Y. Ishihara, Kazuyuki Matsumoto, Hironari Kato, Koichiro Tsutsumi +9 more
2020Surgical Endoscopy12 citations Open access
Semantic Scholar
The intra-conduit release method is useful for avoiding migration of metallic stents during EUS-guided hepaticogastrostomy (with video)
Daisuke Uchida, Hirofumi Kawamoto, Hironari Kato, D. Goto +6 more
2018Journal of medical ultrasonics11 citations
Semantic Scholar
Recent advancements in stent therapy in patients with malignant gastroduodenal outlet obstruction.
Hironari Kato, Koichiro Tsutsumi, H. Okada
2017Annals of Translational Medicine11 citations Open access
Semantic Scholar
Promising therapeutic efficacy of a novel reduced expression in immortalized cells/dickkopf‐3 expressing adenoviral vector for hepatocellular carcinoma
Hiroaki Sawahara, H. Shiraha, Daisuke Uchida, Hironari Kato +21 more
2017Journal of Gastroenterology and Hepatology11 citations
Semantic Scholar
MicroRNA-34a-5p: A pivotal therapeutic target in gallbladder cancer
Takashi Oda, Koichiro Tsutsumi, Taisuke Obata, Eijiro Ueta +11 more
2024Molecular therapy. Oncology9 citations Open access
Semantic Scholar
Risk Factors for Ceftriaxone-Associated Pseudolithiasis in Adults
Akihiro Matsumi, T. Tomoda, Hiroyuki Terasawa, Yuki Fujii +6 more
2023Digestion9 citations
Semantic Scholar
Impact of a Newly Developed Short Double-Balloon Enteroscope on Stent Placement in Patients with Surgically Altered Anatomies
Koichiro Tsutsumi, Hironari Kato, H. Okada
2017Gut and Liver9 citations Open access
Semantic Scholar
Optimal liver drainage rate for survival in patients with unresectable malignant hilar biliary obstruction using 3D-image volume analyzer
Kosaku Morimoto, Kazuyuki Matsumoto, Taisuke Obata, Takashi Oda +9 more
2023Therapeutic Advances in Gastroenterology8 citations Open access
Semantic Scholar
Cysts or necrotic components in pancreatic ductal adenocarcinoma is associated with the risk of EUS-FNA/B complications including needle tract seeding.
Hiroyuki Terasawa, Kazuyuki Matsumoto, Takehiro Tanaka, T. Tomoda +15 more
2023Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]8 citations
Semantic Scholar
Risk Factors for the Development of High-risk Stigmata in Branch-duct Intraductal Papillary Mucinous Neoplasms
Tatsuhiro Yamazaki, T. Tomoda, Hironari Kato, Kazuya Miyamoto +9 more
2020Internal medicine8 citations Open access
Semantic Scholar
Efficacy and safety of chemotherapy after endoscopic double stenting for malignant duodenal and biliary obstructions in patients with advanced pancreatic cancer: a single-institution retrospective analysis
Kazuyuki Matsumoto, Hironari Kato, S. Horiguchi, Koichiro Tsutsumi +7 more
2018BMC Gastroenterology8 citations Open access
Semantic Scholar
Anti-PD-1 Autoantibody Predicts Survival of Patients With Hepatocellular Carcinoma Receiving Atezolizumab/Bevacizumab
Yuki Sasaki, Kazuyuki Matsumoto, A. Takaki, Takuya Adachi +15 more
2024Gastro Hep Advances7 citations Open access
Semantic Scholar
Successful removal of a proximally migrated pancreatic stent using a novel device delivery system
Akihiro Matsumi, Kazuyuki Matsumoto, Daisuke Uchida, S. Horiguchi +3 more
2023Endoscopy7 citations Open access
Semantic Scholar
Efficacy of endoscopic treatment using double-balloon enteroscopy for postoperative bile leakage in patients with hepaticojejunostomy
Kazuyuki Matsumoto, Koichiro Tsutsumi, Hironari Kato, S. Horiguchi +7 more
2018Endoscopy International Open7 citations Open access
Semantic Scholar
Biliary Anastomotic Stricture After Adult Living Donor Liver Transplantation With Duct-to-Duct Reconstruction: Outcome After Endoscopic Treatment Including Rendezvous Procedure
T. Tomoda, Hironari Kato, Sho Mizukawa, Syuntaro Yabe +8 more
2016Transplantation7 citations
Semantic Scholar
Current status of endoscopic ultrasound‐guided antitumor treatment for pancreatic cancer
Kazuyuki Matsumoto, Hironari Kato, Koichiro Tsutsumi, Motoyuki Otsuka
2024Digestive Endoscopy6 citations Open access
Semantic Scholar
Outcomes of endoscopic treatment for malignant biliary obstruction in patients with surgically altered anatomy: analysis of risk factors for clinical failure
T. Tomoda, Hironari Kato, Kazuya Miyamoto, Akihiro Matsumi +9 more
2020Surgical Endoscopy6 citations Open access
Semantic Scholar
Effectiveness of Menghini-Type Needles for Endoscopic Ultrasound-Guided Fine-Needle Aspiration of Pancreatic Masses
Sho Mizukawa, Hironari Kato, Kazuyuki Matsumoto, Shinichiro Muro +9 more
2020Digestive Diseases and Sciences6 citations
Semantic Scholar
A “Back Light System” for Identification of Sites for Endoscopic Ultrasound-Guided Fine-Needle Aspiration in Solid Pancreatic Masses: A Prospective, Randomized Study with a Crossover Design
R. Harada, Hironari Kato, S. Fushimi, Hirofumi Inoue +9 more
2019Clinical Endoscopy6 citations Open access
Semantic Scholar
Association between periodontitis and prognosis of pancreatobiliary tract cancer: A pilot study
T. Maruyama, T. Tomofuji, T. Machida, Hironari Kato +9 more
2017Molecular and clinical oncology6 citations Open access
Semantic Scholar
Efficacy and Safety of Endoscopic Ultrasound-guided Ethanol Ablation Therapy for Pancreatic Neuroendocrine Tumors.
Kazuyuki Matsumoto, Hironari Kato, Koichiro Tsutsumi, Sho Mizukawa +8 more
2016Acta Medica Okayama6 citations
Semantic Scholar
Endoscopic Bridging Stent Placement Improves Bile Leaks After Hepatic Surgery
Taisuke Obata, Kazuyuki Matsumoto, Kei Harada, Nao Hattori +9 more
2025Journal of Clinical Medicine5 citations Open access
Semantic Scholar
Vendor‐Agnostic Vision Transformer‐Based Artificial Intelligence for Peroral Cholangioscopy: Diagnostic Performance in Biliary Strictures Compared With Convolutional Neural Networks and Endoscopists
Ryosuke Sato, Kazuyuki Matsumoto, Masahiro Tomiya, Takayoshi Tanimoto +12 more
2025Digestive Endoscopy5 citations Open access
Semantic Scholar
Virtual indigo carmine chromoendoscopy images: A novel modality for peroral cholangioscopy using artificial intelligence technology (with video).
Ryosuke Sato, Kazuyuki Matsumoto, Hideaki Kinugasa, Masahiro Tomiya +16 more
2024Gastrointestinal Endoscopy5 citations Open access
Semantic Scholar
Dipeptide γ-secretase inhibitor treatment enhances the anti-tumor effects of cisplatin against gastric cancer by suppressing cancer stem cell properties.
Ryo Kato, M. Iwamuro, H. Shiraha, S. Horiguchi +8 more
2018Oncology Letters5 citations Open access
Semantic Scholar
Comparison of two fluoroscopic images to ensure efficient scope insertion for biliary intervention in patients with Roux-en-Y hepaticojejunostomy
Koichiro Tsutsumi, Hironari Kato, K. Hirao, Sho Mizukawa +13 more
2017Endoscopy5 citations
Semantic Scholar
Efficacy and safety of endoscopic ultrasonography‐guided radiofrequency ablation of small pancreatic neuroendocrine neoplasms: A prospective, pilot study
Kazuyuki Matsumoto, Daisuke Uchida, Yasuto Takeuchi, Hironari Kato +13 more
2025DEN Open4 citations Open access
Semantic Scholar
Detection of residual stones by peroral direct cholangioscopy in patients with intrahepatic stones after hepaticojejunostomy: A prospective study (with video).
Kazuyuki Matsumoto, Hironari Kato, Akihiro Matsumi, Kazuya Miyamoto +10 more
2024Gastrointestinal Endoscopy4 citations
Semantic Scholar
The efficacy of non-anesthesiologist-administered propofol sedation with a target-controlled infusion system during double-balloon endoscopic retrograde cholangiopancreatography
Kazuya Miyamoto, Kazuyuki Matsumoto, Taisuke Obata, Ryosuke Sato +11 more
2023BMC Gastroenterology4 citations Open access
Semantic Scholar
Endoscopic ultrasonography findings of pancreatic parenchyma for predicting subtypes of intraductal papillary mucinous neoplasms.
Yuki Fujii, Kazuyuki Matsumoto, Hironari Kato, Tatsuhiro Yamazaki +7 more
2021Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]4 citations Open access
Semantic Scholar
Endoscopic removal of proximally migrated stents using a double‐balloon enteroscope in patients with bowel reconstruction (with video)
T. Oda, Kazuyuki Matsumoto, Eijiro Ueta, Hitomi Himei +8 more
2021DEN Open4 citations Open access
Semantic Scholar
An Intrapancreatic Accessory Spleen That Was Difficult to Diagnose Due to Temporal Changes after Splenectomy
Daisuke Uchida, Koichiro Tsutsumi, Hironari Kato, H. Okada
2017Internal medicine4 citations Open access
Semantic Scholar
Genomic landscape and clinical impact of homologous recombination repair gene mutation in small bowel adenocarcinoma.
T. Ozato, Y. Kono, Shigeru Horiguchi, Koichiro Tsutsumi +6 more
2025European Journal of Cancer3 citations
Semantic Scholar

Frequent co-authors

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Hironari Kato×44
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Hironari Kato — researcher profile on SciRah
Kazuyuki Matsumoto×40
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Kazuyuki Matsumoto — researcher profile on SciRah
S. Horiguchi×40
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S. Horiguchi — researcher profile on SciRah
Daisuke Uchida×36
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Daisuke Uchida — researcher profile on SciRah

×31

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H. Okada — researcher profile on SciRah

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T. Tomoda — researcher profile on SciRah

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Yuki Fujii — researcher profile on SciRah

Tatsuhiro Yamazaki×16

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Tatsuhiro Yamazaki — researcher profile on SciRah

Akihiro Matsumi×16

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Akihiro Matsumi — researcher profile on SciRah

Kazuya Miyamoto×15

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Kazuya Miyamoto — researcher profile on SciRah

Motoyuki Otsuka×13

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Motoyuki Otsuka — researcher profile on SciRah

Yutaka Akimoto×12

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Yutaka Akimoto — researcher profile on SciRah