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  1. No Access

    Reference Work Entry In depth

    EUS- and Enteroscopy-Assisted ERCP

    Deep biliary cannulation, a process in endoscopic retrograde cholangiopancreatography (ERCP), requires immense technical skill. Furthermore, 100% biliary cannulation cannot be achieved even by skilled pancreat...

    Takayoshi Tsuchiya, Takao Itoi in Gastrointestinal and Pancreatico-Biliary D… (2022)

  2. Article

    Open Access

    The feasibility of pancreatic duct stenting using a novel 4-Fr plastic stent with a 0.025-in. guidewire

    Pancreatic duct stenting is a well-established method for reducing post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis. However, there is no consensus on the optimal type of plastic stent. ...

    Kazumasa Nagai, Atsushi Sofuni, Takayoshi Tsuchiya, Kentaro Ishii in Scientific Reports (2021)

  3. Article

    Open Access

    Novel method for evaluating the indication for endoscopic papillectomy in patients with ampullary adenocarcinoma

    This study aimed to determine the clinicopathological features of the subtypes of ampullary carcinoma (AC) to explore the indications for endoscopic papillectomy (EP) in early AC. Fifty-seven patients with AC ...

    Kenjiro Yamamoto, Takao Itoi, Naoyoshi Nagata, Atsushi Sofuni in Scientific Reports (2021)

  4. No Access

    Article

    Ultrasound diagnosis of pancreatic solid tumors

    Advances and widespread use of various diagnostic imaging modalities have dramatically improved our ability to visualize and diagnose pancreatic diseases. In particular, ultrasonography in pancreatic diseases ...

    Atsushi Sofuni, Takayoshi Tsuchiya, Takao Itoi in Journal of Medical Ultrasonics (2020)

  5. No Access

    Living Reference Work Entry In depth

    EUS- and Enteroscopy-Assisted ERCP

    Deep biliary cannulation, a process in endoscopic retrograde cholangiopancreatography (ERCP), requires immense technical skill. Furthermore, 100% biliary cannulation cannot be achieved even by skilled pancreat...

    Takayoshi Tsuchiya, Takao Itoi in Gastrointestinal and Pancreatico-Biliary D…

  6. No Access

    Article

    Surgical Outcomes of Pancreaticoduodenectomy for Pancreatic Cancer with Proximal Dorsal Jejunal Vein Involvement

    The proximal jejunal vein which branches from the dorsal side of the superior mesenteric vein (SMV) usually drains the inferior pancreatoduodenal veins (IPDVs) and contacts the uncinate process of the pancreas...

    Yuichi Hosokawa, Yuichi Nagakawa, Yatsuka Sahara in Journal of Gastrointestinal Surgery (2018)

  7. Article

    Open Access

    Five biopsy specimens from the proximal part of the tumor reliably determine HER2 protein expression status in gastric cancer

    National guidelines recommend trastuzumab for treatment of patients with metastatic HER2-positive gastric cancer (GC). There is currently no guideline indicating the number of biopsy specimens and the location...

    Naoyuki Tominaga, Takuji Gotoda, Megumi Hara, Matthew D. Hale in Gastric Cancer (2016)

  8. No Access

    Article

    Effectiveness of the J-Tip Guidewire for Selective Biliary Cannulation Compared to Conventional Guidewires (The JANGLE Study)

    Wire-guided cannulation has become a common biliary cannulation technique worldwide. Different guidewires with various tip shapes and materials have been reportedly used for wire-guided cannulation. However, t...

    Takayoshi Tsuchiya, Takao Itoi, Iruru Maetani in Digestive Diseases and Sciences (2015)

  9. No Access

    Article

    Expanding endoscopic interventions for pancreatic pseudocyst and walled-off necrosis

    Recently, several endoscopists have described the usefulness of the endoscopic ultrasonography (EUS)-guided, single transluminal gateway technique (SGT) using transmural placement of single or multiple plastic...

    Shuntaro Mukai, Takao Itoi, Atsushi Sofuni, Fumihide Itokawa in Journal of Gastroenterology (2015)

  10. No Access

    Article

    Efficacy and Safety of Endoscopic Papillary Large Balloon Dilation for Large Bile Duct Stones in Elderly Patients

    Minimally invasive interventions for choledocholithiasis are preferable in elderly patients because they tend to have multiple underlying disorders or a decreased activity of daily living. Endoscopic sphincter...

    Ryosuke Tonozuka, Takao Itoi, Atsushi Sofuni in Digestive Diseases and Sciences (2014)

  11. No Access

    Article

    Stent selection and tips on placement technique of EUS-guided biliary drainage: transduodenal and transgastric stenting

    Endoscopic ultrasonography-guided biliary drainage (EUS-BD) has been carried out as an alternative to the percutaneous or surgical approach when endoscopic retrograde cholangiopancreatography fails. However, t...

    Takao Itoi, Hiroyuki Isayama, Atsushi Sofuni in Journal of Hepato-Biliary-Pancreatic Scien… (2011)

  12. No Access

    Article

    EUS elastography combined with the strain ratio of tissue elasticity for diagnosis of solid pancreatic masses

    Recently, the usefulness of endoscopic ultrasound (EUS) elastography has been reported for the diagnosis of pancreatic lesions. In the present study, we retrospectively assessed EUS elastography as a diagnosti...

    Fumihide Itokawa, Takao Itoi, Atsushi Sofuni in Journal of Gastroenterology (2011)

  13. No Access

    Article

    A Multicenter Prospective Study of the Short-Term Outcome of a Newly Developed Partially Covered Self-Expandable Metallic Biliary Stent (WallFlex®)

    Self-expandable metallic stent (SEMS) placement is a widely used, effective therapy for unresectable malignant stricture of the lower bile duct.

    Takayoshi Tsuchiya, Takao Itoi, Takuji Gotoda in Digestive Diseases and Sciences (2011)

  14. No Access

    Article

    Magnetic compression anastomosis for biliary obstruction: review and experience at Tokyo Medical University Hospital

    Magnetic compression anastomosis (MCA) is a revolutionary, minimally invasive method of performing choledochoenterostomy or choledochocholedochostomy without using surgical techniques in patients with biliary ...

    Takao Itoi, Kazuhiko Kasuya, Atsushi Sofuni in Journal of Hepato-Biliary-Pancreatic Scien… (2011)

  15. No Access

    Article

    The current potential of high-intensity focused ultrasound for pancreatic carcinoma

    Pancreatic carcinoma has one of the poorest prognoses among malignant tumors. Many pancreatic carcinoma patients who undergo common treatments, such as surgery, radio-chemotherapy and chemotherapy, gained litt...

    Atsushi Sofuni, Fuminori Moriyasu in Journal of Hepato-Biliary-Pancreatic Scien… (2011)

  16. Article

    Open Access

    Long- and short-type double-balloon enteroscopy-assisted therapeutic ERCP for intact papilla in patients with a Roux-en-Y anastomosis

    There have been a few previous reports on attempted double-balloon endoscopy (DBE)-assisted endoscopic retrograde cholangiopancreatography (ERCP) in patients with Roux-en-Y anastomosis and an intact papilla. T...

    Takao Itoi, Kentaro Ishii, Atsushi Sofuni, Fumihide Itokawa in Surgical Endoscopy (2011)

  17. No Access

    Article

    Endoscopic ultrasonography-guided biliary drainage

    Endoscopic ultrasonography-guided biliary drainage (EUS-BD) has been developed as an alternative drainage method in patients with obstructive jaundice. EUS-BD is divided into EUS-guided choledochoduodenostomy ...

    Takao Itoi, Atsushi Sofuni, Fumihide Itokawa in Journal of Hepato-Biliary-Pancreatic Scien… (2010)

  18. No Access

    Article

    Advantages of NH4 + on growth, nitrogen uptake and root respiration of Phragmites australis

    We investigated growth, N nutrition, and root respiration in Phragmites australis (Cav.) Trin. ex Steud. grown under conditions with different N sources, and evaluated the advantages of NH4 ...

    Motoka Nakamura, Takatoshi Nakamura, Takayoshi Tsuchiya in Plant and Soil (2010)

  19. No Access

    Article

    Interspecific differences in radial oxygen loss from the roots of three Typha species

    A comparison was made of the radial oxygen loss (ROL) from the roots of three Typha species, Typha latifolia L., Typha orientalis Presl and Typha angustifolia L., which resemble each other in morphology. ROLs wer...

    Tomomi Matsui Inoue, Takayoshi Tsuchiya in Limnology (2008)

  20. No Access

    Article

    Detection of circulating tumor cells in patients with pancreatic cancer: a preliminary result

    It has been reported that circulating tumor cells (CTCs) can be used to predict survival in metastatic breast cancer. In this preliminary study, we examined the level of CTCs in pancreatic cancer (PC) patients...

    Toshio Kurihara, Takao Itoi, Atsushi Sofuni in Journal of Hepato-Biliary-Pancreatic Surge… (2008)

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