BACKGROUND AND AIM: It is common knowledge that endoscopic ultrasonography (EUS) can accurately diagnose pancreatic diseases. Echoendoscopes for EUS are roughly classified into two categories, the mechanical radial scanning echoendoscope (MR-ES) and the electronic linear array echoendoscope, both of which have their merits and demerits. In 2000, a newly designed echoendoscope, the electronic radial scanning echoendoscope (ER-ES), appeared. The aim of the present study was to compare B-mode image quality between the ER-ES and the MR-ES in pancreatic diseases. METHODS: Patients with pancreatic diseases (30 cystic diseases and 22 solid diseases) underwent EUS with both ER-ES and MR-ES. The B-mode images obtained using both echoendoscopes were graded using a scoring system and statistically analyzed. The assessed point for cystic lesions was the existence of mechanical-noise-like ring-like artifacts derived using multiple reflections ('ring-down'), grating robe and so on, and that for solid lesions was the scale of penetration. The authors compared maneuverability, endurance and endoscopic images between the two types of echoendoscopes. RESULTS: The ER-ES had a significantly higher score than the MR-ES (P < 0.05) in the analysis of both cystic and solid diseases. There was no apparent difference as to maneuverability, endurance and endoscopic images. CONCLUSION: Ultrasound images acquired by ER-ES appear better compared with those acquired by MR-ES.
BACKGROUND AND AIM: It is common knowledge that endoscopic ultrasonography (EUS) can accurately diagnose pancreatic diseases. Echoendoscopes for EUS are roughly classified into two categories, the mechanical radial scanning echoendoscope (MR-ES) and the electronic linear array echoendoscope, both of which have their merits and demerits. In 2000, a newly designed echoendoscope, the electronic radial scanning echoendoscope (ER-ES), appeared. The aim of the present study was to compare B-mode image quality between the ER-ES and the MR-ES in pancreatic diseases. METHODS:Patients with pancreatic diseases (30 cystic diseases and 22 solid diseases) underwent EUS with both ER-ES and MR-ES. The B-mode images obtained using both echoendoscopes were graded using a scoring system and statistically analyzed. The assessed point for cystic lesions was the existence of mechanical-noise-like ring-like artifacts derived using multiple reflections ('ring-down'), grating robe and so on, and that for solid lesions was the scale of penetration. The authors compared maneuverability, endurance and endoscopic images between the two types of echoendoscopes. RESULTS: The ER-ES had a significantly higher score than the MR-ES (P < 0.05) in the analysis of both cystic and solid diseases. There was no apparent difference as to maneuverability, endurance and endoscopic images. CONCLUSION: Ultrasound images acquired by ER-ES appear better compared with those acquired by MR-ES.
Authors: Ronald E Kumon; Aparna Repaka; Matthew Atkinson; Ashley L Faulx; Richard C K Wong; Gerard A Isenberg; Yi-Sing Hsiao; Madhu S R Gudur; Cheri X Deng; Amitabh Chak Journal: Gastrointest Endosc Date: 2012-04-11 Impact factor: 9.427
Authors: Christoph F Dietrich; Paolo Giorgio Arcidiacono; Barbara Braden; Sean Burmeister; Silvia Carrara; Xinwu Cui; Milena Di Leo; Yi Dong; Pietro Fusaroli; Uwe Gottschalk; Andrew J Healey; Michael Hocke; Stephan Hollerbach; Julio Iglesias Garcia; André Ignee; Christian Jürgensen; Michel Kahaleh; Masayuki Kitano; Rastislav Kunda; Alberto Larghi; Kathleen Möller; Bertrand Napoleon; Kofi W Oppong; Maria Chiara Petrone; Adrian Saftoiu; Rajesh Puri; Anand V Sahai; Erwin Santo; Malay Sharma; Assaad Soweid; Siyu Sun; Anthony Yuen Bun Teoh; Peter Vilmann; Hans Seifert; Christian Jenssen Journal: Endosc Ultrasound Date: 2019 Nov-Dec Impact factor: 5.628