title: Availability, indications, and technical performance of computed tomographic colonography: a national survey.
abstract: OBJECTIVE
  To determine the availability, indications, and technique of computed tomographic colonography (CTC) in Sweden and to investigate opinions on its future role in colon imaging.
  
  
  METHODS
  In May 2004, a questionnaire on CTC was mailed to all Departments of Radiology in Sweden, and one year later a telephone interview was conducted with the departments that intended to start a CTC service.
  
  
  RESULTS
  Ninety-nine departments (83%) answered the questionnaire, indicating that 23/ 99 (23.2%) offered a CTC service. Reasons for non-implementation of CTC were lack of CTC training in 34/73 (46.6%) and non-availability of multi-detector row CT scanners in 33/73 (45.2%), while 26% were awaiting further scientific documentation on CTC. Incomplete colonoscopy was the main indication for CTC in 21/23 (91.3%) departments performing CTC. Dual positioning, room air insufflation, and thin-slice collimation were used in all the responding departments. The number of CTC studies performed varied from 1-5 (26.1%) to more than 200 (17.4%). Intravenous contrast material was routinely administered by 9/23 (39.1%) departments. Out of 30 (39.5%) departments that in 2004 intended to start CTC, 9 (30%) had done so by June 2005. A total of 32/99 (32.3%) departments had therefore started CTC by June 2005. Half of the departments that replied believed that CTC would absolutely or probably replace barium enema in the future.
  
  
  CONCLUSIONS
  The survey shows relatively limited diffusion of CTC practice in Sweden, with approximately one-third of radiology departments offering a CTC service, mostly on a small scale. A wider dissemination of CTC requires further scientific documentation of its capability, intensified educational efforts, and additional funding.
authors.affiliation: Department of Radiology, Sahlgrenska University Hospital and Sahlgrenska Academy at Göteborg University, Göteborg, Sweden. valeria.fisichella@vgregion.se
authors.forename: V
authors.initials: V
authors.lastname: Fisichella
authors.forename: M
authors.initials: M
authors.lastname: Hellström
mesh_terms: D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D023881:Colonography, Computed Tomographic / Q000706:statistics & numerical data* / Q000639:trends; D004059:Diffusion of Innovation; D019538:Health Care Surveys; D006297:Health Services Accessibility; D006801:Humans; D018579:Patient Selection; D011872:Radiology Department, Hospital; D015203:Reproducibility of Results; D013548:Sweden