Prospective, randomized comparison of mechanical and electronic radial endoscopic ultrasound systems: assessment of performance parameters and image quality.
Standard
Prospective, randomized comparison of mechanical and electronic radial endoscopic ultrasound systems: assessment of performance parameters and image quality. / Papanikolaou, Ioannis S; Delicha, Eumorphia M; Adler, Andreas; Wegener, Katharina; Pohl, Heiko; Wiedenmann, Bertram; Rösch, Thomas.
in: SCAND J GASTROENTERO, Jahrgang 44, Nr. 1, 1, 2009, S. 93-99.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Prospective, randomized comparison of mechanical and electronic radial endoscopic ultrasound systems: assessment of performance parameters and image quality.
AU - Papanikolaou, Ioannis S
AU - Delicha, Eumorphia M
AU - Adler, Andreas
AU - Wegener, Katharina
AU - Pohl, Heiko
AU - Wiedenmann, Bertram
AU - Rösch, Thomas
PY - 2009
Y1 - 2009
N2 - OBJECTIVE: Implementation of electronic image technology in endoscopic ultrasonography (EUS) should improve image quality, but systematic data are scarce. The purpose of this study was to compare the image quality and performance of an electronic and a mechanical radial echoendoscope. MATERIAL AND METHODS: Eighty consecutive patients (42 M, mean age 56 years) in a tertiary referral center, without gross pathology (advanced tumors excluded), were prospectively randomized to EUS with the mechanical or electronic echoendoscope. Images from five standardized positions (pancreatobiliary and upper gastrointestinal (GI) tract) were taken by two examiners of differing experience. Time to acquire images was noted. Penetration depth was also measured. Image quality variables (overall quality, contrast, and structure discrimination) were assessed blindly on the basis of randomly shuffled images during three independent evaluations by the same experienced examiner (mean values were taken), using a visual analogue scale (VAS) from 1 (excellent) to 10 (inadequate). RESULTS: Time needed to achieve visualization of the distal common bile duct (CBD) was significantly shorter with the electronic scope (49.7+/-8.6 versus 97.4+/-8.5 s; p
AB - OBJECTIVE: Implementation of electronic image technology in endoscopic ultrasonography (EUS) should improve image quality, but systematic data are scarce. The purpose of this study was to compare the image quality and performance of an electronic and a mechanical radial echoendoscope. MATERIAL AND METHODS: Eighty consecutive patients (42 M, mean age 56 years) in a tertiary referral center, without gross pathology (advanced tumors excluded), were prospectively randomized to EUS with the mechanical or electronic echoendoscope. Images from five standardized positions (pancreatobiliary and upper gastrointestinal (GI) tract) were taken by two examiners of differing experience. Time to acquire images was noted. Penetration depth was also measured. Image quality variables (overall quality, contrast, and structure discrimination) were assessed blindly on the basis of randomly shuffled images during three independent evaluations by the same experienced examiner (mean values were taken), using a visual analogue scale (VAS) from 1 (excellent) to 10 (inadequate). RESULTS: Time needed to achieve visualization of the distal common bile duct (CBD) was significantly shorter with the electronic scope (49.7+/-8.6 versus 97.4+/-8.5 s; p
KW - Humans
KW - Male
KW - Female
KW - Middle Aged
KW - Prospective Studies
KW - Sensitivity and Specificity
KW - Time Factors
KW - Algorithms
KW - Endosonography instrumentation
KW - Biliary Tract ultrasonography
KW - Biliary Tract Diseases ultrasonography
KW - Electronics instrumentation
KW - Gastrointestinal Diseases ultrasonography
KW - Gastrointestinal Tract ultrasonography
KW - Mechanical Phenomena
KW - Pancreas ultrasonography
KW - Pancreatic Diseases ultrasonography
KW - Humans
KW - Male
KW - Female
KW - Middle Aged
KW - Prospective Studies
KW - Sensitivity and Specificity
KW - Time Factors
KW - Algorithms
KW - Endosonography instrumentation
KW - Biliary Tract ultrasonography
KW - Biliary Tract Diseases ultrasonography
KW - Electronics instrumentation
KW - Gastrointestinal Diseases ultrasonography
KW - Gastrointestinal Tract ultrasonography
KW - Mechanical Phenomena
KW - Pancreas ultrasonography
KW - Pancreatic Diseases ultrasonography
M3 - SCORING: Zeitschriftenaufsatz
VL - 44
SP - 93
EP - 99
JO - SCAND J GASTROENTERO
JF - SCAND J GASTROENTERO
SN - 0036-5521
IS - 1
M1 - 1
ER -
