2026-03-10T15:45:18Z https://fmu.repo.nii.ac.jp/oai

oai:fmu.repo.nii.ac.jp:02001783 2024-11-29T08:54:16Z 1732778801467:1732778962699:1732869431318

An electronic radial scanning echoendoscope is superior to a mechanical radial scanning echoendoscope in ultrasound image quality for gastrointestinal tract and pancreaticobiliary lesions Hikichi, Takuto Irisawa, Atsushi Takagi, Tadayuki Shibukawa, Goro Wakatsuki, Takeru Imamura, Hidemichi Takahashi, Yuta Sato, Ai Sato, Masaki Ikeda, Tsunehiko Suzuki, Rei Watanabe, Ko Nakamura, Jun Ohira, Hiromasa Obara, Katsutoshi © 2010 The Fukushima Society of Medical Science EUS electronic radial scanning echoendoscope electronic EUS mechanical radial scanning echoendoscope EUS-FNA Endosonography Equipment Design Gallbladder Diseases Gastrointestinal Tract Humans Pancreatic Neoplasms Stomach Neoplasms [Purpose] To objectively compare the electronic radial scanning echoendoscope (ER-ES) with the mechanical radial scanning echoendoscope (MR-ES) in the quality of endoscopic ultrasonography (EUS) images of gastrointestinal tract and pancreaticobiliary lesions. [Methods] Studied were 56 patients: 20 with gastric cancer, 20 with gallbladder lesions, and 16 with intraductal papillary-mucinous neoplasms of the pancreas (IPMN). They were subjected to EUS, half of them using the ER-ES, and the other half using the MR-ES. EUS images thus obtained were evaluated concerning four items in patients with gastric cancer and those with gallbladder lesions, and three items in patients with IPMN. Six endosonographers blindly assessed two EUS images per patient on a visual analogue scale. In each of the three groups of patients, the evaluators' median scores for the ER-ES and MR-ES for each item were compared. [Results] The median scores for the ER-ES were significantly higher than those for the MR-ES in all items in patients with gastric cancer and those with IPMN, and in one item in patients with gallbladder lesions. [Conclusion] The ER-ES is certainly superior to the MR-ES in the quality of EUS images of gastrointestinal tract and pancreaticobiliary lesions. The Fukushima Society of Medical Science 2010-12 eng journal article VoR https://fmu.repo.nii.ac.jp/records/2001783 https://doi.org/10.5387/fms.56.99 21502709 2012213117 0016-2590 2185-4610 AA0065246X Fukushima Journal of Medical Science 56 2 99 106 https://fmu.repo.nii.ac.jp/record/2001783/files/FksmJMedSci_56_p99.pdf application/pdf 862.5 KB