Capability of Radial- and Convex-Arrayed Echoendoscopes for Visualization of the Pancreatobiliary Junction
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Background/Aims: Although both radial- and convex-arrayed endoscopic ultrasonography (EUS) scopes are widely used forobservational EUS examinations, there have been few comparative studies on their power of visualization. The aim of this study was toevaluate the capability of these EUS scopes for observation of the pancreatobiliary junction. Methods: The rate of successful visualization of the pancreatobiliary junction was retrospectively compared between a radial-arrayedand a convex-arrayed echoendoscope, from a prospectively maintained database. Study periods were defined as January 2010 toDecember 2012 for the radial group, and February 2015 to October 2016 for the convex group because the respective scope wasmainly used during those periods. Results: During the study period, 1,660 cases with radial EUS and 1,984 cases with convex EUS were recruited. The success rates ofobservation of the pancreatobiliary junction were 80.0% and 89.5%, respectively (p<0.0001). Conclusions: The capability of visualization of the pancreatobiliary junction in observational EUS was found to be better with aconvex-arrayed than with a radial-arrayed echoendoscope
Abstract
Background/Aims: Although both radial- and convex-arrayed endoscopic ultrasonography (EUS) scopes are widely used forobservational EUS examinations, there have been few comparative studies on their power of visualization. The aim of this study was toevaluate the capability of these EUS scopes for observation of the pancreatobiliary junction. Methods: The rate of successful visualization of the pancreatobiliary junction was retrospectively compared between a radial-arrayedand a convex-arrayed echoendoscope, from a prospectively maintained database. Study periods were defined as January 2010 toDecember 2012 for the radial group, and February 2015 to October 2016 for the convex group because the respective scope wasmainly used during those periods. Results: During the study period, 1,660 cases with radial EUS and 1,984 cases with convex EUS were recruited. The success rates ofobservation of the pancreatobiliary junction were 80.0% and 89.5%, respectively (p<0.0001). Conclusions: The capability of visualization of the pancreatobiliary junction in observational EUS was found to be better with aconvex-arrayed than with a radial-arrayed echoendoscope
참고문헌 (11)
- Sugiyama M, "Endoscopic ultrasonography for diagnosing choledocholithiasis: a prospective comparative study with ultrasonography and computed tomography", Gastrointest Endosc, 45, pp.143~146 (1997)[DOI]
- Kondo S, "Detection of common bile duct stones: comparison between endoscopic ultrasonography, magnetic resonance cholangiography, and helical-computed-tomographic cholangiography", Eur J Radiol, 54, pp.271~275 (2005)[DOI]
- Mirbagheri SA, "Prospective evaluation of endoscopic ultrasonography in the diagnosis of biliary microlithiasis in patients with normal transabdominal ultrasonography", J Gastrointest Surg, 9, pp.961~964 (2005)[DOI]
- Ney MV, "Echo-endoscopy versus endoscopic retrograde cholangiography for the diagnosis of choledocholithiasis: the influence of the size of the stone and diameter of the common bile duct", Arq Gastroenterol, 42, pp.239~243 (2005)[DOI]
- Mitake M, "Value of endoscopic ultrasonography in the detection of anomalous connections of the pancreatobiliary duct", Endoscopy, 23, pp.117~120 (1991)[DOI]
- Sugiyama M, "Endoscopic ultrasonography for diagnosing anomalous pancreaticobiliary junction", Gastrointest Endosc, 45, pp.261~267 (1997)[DOI]
- Tanaka M, "International consensus guidelines 2012 for the management of IPMN and MCN of the pancreas", Pancreatology, 12, pp.183~197 (2012)[DOI]
- Katanuma A, "The difference in the capability of delineation between convex and radial arrayed echoendoscope for pancreas and biliary tract; case reports from the standpoint of both convex and radial arrayed echoendoscope", Dig Endosc, 23(Suppl 1), pp.2~8 (2011)[DOI]
- Hara K, "A convex EUS is useful to diagnose vascular invasion of cancer, especially hepatic hilus cancer", Dig Endosc, 23(Suppl 1), pp.26~28 (2011)[DOI]
- Kaneko M, "Prospective, randomized, comparative study of delineation capability of radial scanning and curved linear array endoscopic ultrasound for the pancreaticobiliary region", Endosc Int Open, 2, pp.E160~E170 (2014)[DOI]
- Ito K, "Preoperative evaluation of ampullary neoplasm with EUS and transpapillary intraductal US: a prospective and histopathologically controlled study", Gastrointest Endosc, 66, pp.740~747 (2007)[DOI]