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  1. No Access

    Article

    Utility of Contrast-Enhanced Harmonic Endoscopic Ultrasonography to Diagnose Pancreaticobiliary Maljunction

    Detection of a common channel outside the duodenal wall is important in diagnosing pancreaticobiliary maljunction (PBM). The present study evaluated the utility of contrast-enhanced harmonic endoscopic ultraso...

    Tomohiro Yamazaki, Ken Kamata, Tomoko Hyodo in Digestive Diseases and Sciences (2024)

  2. Article

    Open Access

    Correction: A review of contrast-enhanced harmonic endoscopic ultrasonography for pancreatic solid tumors

    Yasuo Otsuka, Ken Kamata in Journal of Medical Ultrasonics (2024)

  3. No Access

    Article

    Impact of Smad4 and p53 mutations on the prognosis of patients with pancreatic ductal adenocarcinoma undergoing chemotherapy

    This prospective cohort study evaluated the feasibility of using endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) samples for comprehensive mutational analysis of cancer-related genes using microtissues.

    Ken Kamata, Mamoru Takenaka, Naoshi Nishida in International Journal of Clinical Oncology (2023)

  4. Article

    Open Access

    A review of contrast-enhanced harmonic endoscopic ultrasonography for pancreatic solid tumors

    Endoscopic ultrasonography (EUS) is superior to other imaging modalities in the detection of pancreatic masses, although differentiating the types of pancreatic masses detected on EUS remains challenging. Howe...

    Yasuo Otsuka, Ken Kamata in Journal of Medical Ultrasonics (2023)

  5. No Access

    Article

    Efficacy of EUS-guided celiac plexus neurolysis in combination with EUS-guided celiac ganglia neurolysis for pancreatic cancer-associated pain: a multicenter prospective trial

    This study evaluated the efficacy of endoscopic ultrasound-guided celiac plexus neurolysis (EUS-CPN) in combination with EUS-guided celiac ganglia neurolysis (EUS-CGN) for pancreatic cancer-associated pain.

    Ken Kamata, Makiko Kinoshita in International Journal of Clinical Oncology (2022)

  6. No Access

    Article

    Utility of contrast-enhanced harmonic endoscopic ultrasonography for T-staging of patients with extrahepatic bile duct cancer

    The value of contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for T-staging in patients with extrahepatic bile duct cancer was evaluated.

    Yasuo Otsuka, Ken Kamata, Tomoko Hyodo, Takaaki Chikugo, Akane Hara in Surgical Endoscopy (2022)

  7. Article

    Open Access

    The clinical outcomes of combination chemotherapy in elderly patients with advanced biliary tract cancer: an exploratory analysis of JCOG1113

    In the FUGA-BT trial (JCOG1113), gemcitabine plus S-1 (GS) showed non-inferiority to gemcitabine plus cisplatin (GC) in overall survival (OS) with good tolerance for patients with advanced biliary tract cancer...

    Ikuhiro Yamada, Chigusa Morizane, Takuji Okusaka, Junki Mizusawa in Scientific Reports (2022)

  8. Article

    Open Access

    Comparison of gemcitabine-based chemotherapies for advanced biliary tract cancers by renal function: an exploratory analysis of JCOG1113

    JCOG1113 is a randomized phase III trial in patients with advanced biliary tract cancers (BTCs) (UMIN000001685), and gemcitabine plus S-1 (GS) was not inferior to gemcitabine plus cisplatin (GC). However, poor...

    Makoto Ueno, Chigusa Morizane, Takuji Okusaka, Junki Mizusawa in Scientific Reports (2021)

  9. Article

    Open Access

    Clinicopathological analysis of hepatic immune-related adverse events in comparison with autoimmune hepatitis and graft-versus host disease

    Immune checkpoint inhibitors (ICIs) targeting programmed cell death 1 (PD-1) and cytotoxic T-lymphocyte antigen-4 (CTLA-4) are widely used to treat advanced metastatic cancers. Neutralisation of PD-1 or CTLA-4...

    Satoru Hagiwara, Tomohiro Watanabe, Masatoshi Kudo, Kosuke Minaga in Scientific Reports (2021)

  10. No Access

    Article

    A case with eosinophilic gastroenteritis exhibiting enhanced TNF-α and IL-6 responses

    Eosinophilic gastroenteritis (EGE) is a chronic allergic disorder characterized by infiltration of eosinophils in the gastrointestinal (GI) tract and hypereosinophilia. Although T helper type 2 (Th2) responses...

    Ikue Sekai, Tomohiro Watanabe, Keisuke Yoshikawa in Clinical Journal of Gastroenterology (2021)

  11. No Access

    Article

    Navigator-triggered and breath-hold 3D MRCP using compressed sensing: image quality and method selection factor assessment

    To examine whether MRCP using a combination of compressed sensing and sensitivity encoding with navigator-triggered and breath-hold techniques (NT C-SENSE and BH C-SENSE, respectively) have comparable image qu...

    Daisuke Morimoto, Tomoko Hyodo, Ken Kamata, Tomoya Kadoba in Abdominal Radiology (2020)

  12. Article

    Open Access

    Identification of serum IFN-α and IL-33 as novel biomarkers for type 1 autoimmune pancreatitis and IgG4-related disease

    IgG4-related disease (IgG4-RD) is a multi-organ autoimmune disease characterized by elevated serum IgG4 concentration. Although serum IgG4 concentration is widely used as a biomarker for IgG4-RD and type 1 aut...

    Kosuke Minaga, Tomohiro Watanabe, Akane Hara, Ken Kamata in Scientific Reports (2020)

  13. No Access

    Article

    Possible involvement of autophagy in esophageal ulcers in anorexia nervosa

    Although patients with anorexia nervosa (AN) present with various gastrointestinal disorders, little has been understood regarding the incidence and pathophysiology of gastrointestinal ulcers related to AN. A ...

    Sho Masaki, Tomohiro Watanabe, Kosuke Minaga in Clinical Journal of Gastroenterology (2020)

  14. No Access

    Article

    Recurrent abdominal pain caused by nephroptosis

    Nephroptosis is a benign disorder defined as a significant descent of the affected kidney as the patient moves from supine to erect. Patients with nephroptosis sometimes manifest symptoms including abdominal p...

    Saki Yoshida, Mariko Matsumura, Kiyoshi Maekawa in Clinical Journal of Gastroenterology (2020)

  15. No Access

    Article

    Activation of interferon regulatory factor 7 in plasmacytoid dendritic cells promotes experimental autoimmune pancreatitis

    Excessive type I IFN (IFN-I) production by plasmacytoid dendritic cells (pDCs) promotes autoimmunity. Recently, we reported that a prominent feature of both experimental autoimmune pancreatitis (AIP) and human...

    Kosuke Minaga, Tomohiro Watanabe, Yasuyuki Arai in Journal of Gastroenterology (2020)

  16. No Access

    Article

    Efficacy of a modified double-guidewire technique using an uneven double lumen cannula (uneven method) in patients with surgically altered gastrointestinal anatomy (with video)

    Balloon enteroscopy-assisted endoscopic retrograde cholangiopancreatography (BE-ERCP) has been reported to be effective for patients with surgically altered gastrointestinal anatomy. However, selective biliary...

    Mamoru Takenaka, Kosuke Minaga, Ken Kamata, Kentaro Yamao in Surgical Endoscopy (2020)

  17. No Access

    Article

    Hepatic portal venous gas associated with Klebsiella oxytoca infection in the absence of preceding antibiotic treatment

    Klebsiella oxytoca (K. oxytoca) is a causative organism for hemorrhagic antibiotic-associated colitis. K. oxytoca infection is a typical example of microbial substitution diseases caused by exposure to antibiotic...

    Hidekazu Tanaka, Tomohiro Watanabe, Tomoyuki Nagai in Clinical Journal of Gastroenterology (2019)

  18. No Access

    Article

    A case of successful transluminal drainage of walled-off necrosis under contrast-enhanced harmonic endoscopic ultrasonography guidance

    We report a case of successful transluminal drainage of walled-off necrosis (WON) under contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) guidance. Recently, EUS-guided transluminal drainage (EUS-...

    Kosuke Minaga, Mamoru Takenaka, Shunsuke Omoto in Journal of Medical Ultrasonics (2018)

  19. No Access

    Article

    Rescue EUS-guided intrahepatic biliary drainage for malignant hilar biliary stricture after failed transpapillary re-intervention

    Treatment of unresectable malignant hilar biliary stricture (UMHBS) is challenging, especially after failure of repeated transpapillary endoscopic stenting. Endoscopic ultrasonography-guided intrahepatic bilia...

    Kosuke Minaga, Mamoru Takenaka, Masayuki Kitano, Yasutaka Chiba in Surgical Endoscopy (2017)

  20. No Access

    Article

    Imaging and clinicopathological features of nivolumab-related cholangitis in patients with non-small cell lung cancer

    Background Nivolumab demonstrates promising efficacy for the treatment of non-small cell lung cancer and other malignancies. The clinical benefit of nivolumab, however, may be hampered by...

    Hisato Kawakami, Junko Tanizaki, Kaoru Tanaka, Koji Haratani in Investigational New Drugs (2017)

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