Hiroshi Imaoka

Evaluation of Ki-67 index in EUS–FNA specimens for the assessment of malignancy risk in pancreatic neuroendocrine tumors

Toshiyuki Hasegawa, Kenji Yamao, Susumu Hijioka et al. · Endoscopy · 2013 · 182 citations

Medicine, Oncology, Pathology +17

Diagnostic ability and factors affecting accuracy of endoscopic ultrasound-guided fine needle aspiration for pancreatic solid lesions: Japanese large single center experience

Shin Haba, Kenji Yamao, Vikram Bhatia et al. · Journal of Gastroenterology · 2012 · 165 citations

Medicine, Surgery, Gastroenterology +16

Prospective clinical study of endoscopic ultrasound-guided choledochoduodenostomy with direct metallic stent placement using a forward-viewing echoendoscope

Kazuo Hara, Kenji Yamao, Susumu Hijioka et al. · Endoscopy · 2013 · 130 citations

Medicine, Radiology, Surgery +17

Comparison of endoscopic submucosal dissection and endoscopic mucosal resection for large colorectal tumors

Masahiro Tajika, Yasumasa Niwa, Vikram Bhatia et al. · European Journal of Gastroenterology & Hepatology · 2011 · 114 citations

Medicine, Oncology, Surgery +17

EUS-guided choledochoduodenostomy for palliative biliary drainage in case of papillary obstruction: report of 2 cases

Kenji Yamao, Akira Sawaki, Kuniyuki Takahashi et al. · Gastrointestinal Endoscopy · 2006 · 112 citations

Medicine, Surgery, Hepatology +13