A comparison of image quality between tissue harmonic imaging and fundamental imaging with an electronic radial scanning echoendoscope in the diagnosis of pancreatic diseases

Gastrointestinal Endoscopy
Hideki IshikawaH Goto

Abstract

The availability of an electronic radial scanning echoendoscope has facilitated the clinical use of tissue harmonic imaging. This study compares the quality of US images acquired by tissue harmonic imaging during electronic radial scanning EUS to those acquired by fundamental imaging. Electronic radial scanning EUS was performed in 108 patients with pancreatic lesions (58 cystic, 50 solid). US images acquired by fundamental imaging at a frequency of 7.5 MHz were compared with those acquired by tissue harmonic imaging by using transmitting and receiving frequencies of, respectively, 4.0 and 8.0 MHz at the same scanning plane. Cystic lesions were evaluated for boundary/septum and nodules, and solid lesions, for boundary and internal structure. US images acquired by tissue harmonic imaging and fundamental imaging during electronic radial scanning EUS were compared, by using a Likert scale for the respective evaluation criteria, by two independent endoscopists. For cystic lesions, tissue harmonic images were significantly clearer than fundamental images for visualizing boundary and septum (p < 0.0001, both reviewers) and nodules (p = 0.0003, Reviewer 1; p = 0.0007, Reviewer 2). For solid lesions, tissue harmonic images were signifi...Continue Reading

Citations

Oct 2, 2019·Endoscopic Ultrasound·Christoph F DietrichChristian Jenssen
Sep 25, 2012·Journal of Gastroenterology·Yoshiki HirookaHidemi Goto
Jan 23, 2015·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Akio KatanumaAmol Bapaye
Sep 5, 2012·Scandinavian Journal of Gastroenterology·Keisuke KanazawaHisao Tajiri
Sep 30, 2008·Scandinavian Journal of Gastroenterology·Ioannis S PapanikolaouThomas Rösch
Mar 21, 2006·Journal of Hepato-biliary-pancreatic Surgery·Hiroki KawashimaHidemi Goto
Jan 30, 2015·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Eizaburo OhnoYoshiki Hirooka
Mar 6, 2021·Endoscopic Ultrasound·Malay SharmaChristoph F Dietrich
Feb 7, 2021·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Shunsuke OmotoMasatoshi Kudo
Nov 24, 2004·Gastrointestinal Endoscopy Clinics of North America·Thomas Röesch

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