title: International survey of knowledge of indications for EUS.
abstract: BACKGROUND
  The knowledge level for EUS indications among gastroenterologists across different locations and practices is not known. The aim of this study was to assess knowledge of EUS indications among a diverse group of gastroenterologists, both nationally and internationally.
  
  
  METHODS
  A web-based survey was designed to assess knowledge of EUS with respect to 4 organ systems: esophagus, gastroduodenum, hepatopancreatobiliary, and colorectum. The survey was distributed by electronic mail (e-mail) to members of the American Society for Gastrointestinal Endoscopy.
  
  
  RESULTS
  The survey was distributed to 3848 physicians, of whom 2848 had an active e-mail address. There were 323 respondents (11.3%), of whom 210 were U.S. members and 113 international. Overall, the mean score for the different organ systems for all respondents was highest for gastroduodenum (93% correct) and lowest for colorectum (71%) compared with esophagus (79%) and hepatopancreatobiliary (83%) systems. The mean total score was higher for U.S. respondents (84% correct) compared with international respondents (79%, p < 0.0001). Endosonographers fared better than those who were not endosonographers (85% vs. 81%, p = 0.0002).
  
  
  CONCLUSIONS
  Knowledge levels of colorectal applications of EUS are poorest among the 4 organ systems studied. Future educational initiatives should focus on applications of EUS in this category. Studies are required to assess the impact of this education on the appropriateness of EUS referral patterns.
authors.affiliation: Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota 55905, USA.
authors.forename: Tony E
authors.initials: TE
authors.lastname: Yusuf
authors.forename: Gavin C
authors.initials: GC
authors.lastname: Harewood
authors.forename: Jonathan E
authors.initials: JE
authors.lastname: Clain
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Levy
mesh_terms: D001652:Bile Ducts; D003106:Colon; D003625:Data Collection; D004386:Duodenum; D034742:Electronic Mail; D019160:Endosonography; D004947:Esophagus; D005260:Female; D005762:Gastroenterology / Q000193:education; D006801:Humans; D008099:Liver; D008297:Male; D008875:Middle Aged; D010179:Pancreas; D012007:Rectum; D013270:Stomach