title: Introduction of organised mammography screening in Tyrol: results of a one-year pilot phase.
abstract: BACKGROUND
  Efficiency and efficacy of organised mammography screening programs have been proven in large randomised trials. But every local implementation of mammography screening has to check whether the well established quality standards are met. Therefore it was the aim of this study to analyse the most common quality indices after introducing organised mammography screening in Tyrol, Austria, in a smooth transition from the existing system of opportunistic screening.
  
  
  METHODS
  In June 2007, the system of opportunistic mammography screening in Tyrol was changed to an organised system by introducing a personal invitation system, a training program, a quality assurance program and by setting up a screening database. All procedures are noted in a written protocol. Most EU recommendations for organised mammography screening were followed, except double reading. All women living in Tyrol and covered by social insurance are now invited for a mammography, in age group 40-59 annually and in age group 60-69 biannually. Screening mammography is offered mainly by radiologists in private practice. We report on the results of the first year of piloting organised mammography screening in two counties in Tyrol.
  
  
  RESULTS
  56,432 women were invited. Estimated participation rate was 34.5% at one year of follow-up (and 55.5% at the second year of follow-up); 3.4% of screened women were recalled for further assessment or intermediate screening within six months. Per 1000 mammograms nine biopsies were performed and four breast cancer cases detected (N = 68). Of invasive breast cancer cases 34.4% were ≤ 10 mm in size and 65.6% were node-negative. In total, six interval cancer cases were detected during one year of follow-up; this is 19% of the background incidence rate.
  
  
  CONCLUSIONS
  In the Tyrolean breast cancer screening program, a smooth transition from a spontaneous to an organised mammography screening system was achieved in a short time and with minimal additional resources. One year after introduction of the screening program, most of the quality indicators recommended by the European guidelines had been reached.However, it will be necessary to introduce double reading, to change the rule for BI-RADS 3, and to concentrate on actions toward improving the participation rate.
authors.affiliation: Department of Clinical Epidemiology of the Tyrolean State Hospitals Ltd, Cancer Registry of Tyrol, Innsbruck, Austria. willi.oberaigner@tilak.at
authors.forename: Willi
authors.initials: W
authors.lastname: Oberaigner
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Buchberger
authors.forename: Thomas
authors.initials: T
authors.lastname: Frede
authors.forename: Martin
authors.initials: M
authors.lastname: Daniaux
authors.forename: Rudolf
authors.initials: R
authors.lastname: Knapp
authors.forename: Christian
authors.initials: C
authors.lastname: Marth
authors.forename: Uwe
authors.initials: U
authors.lastname: Siebert
mesh_terms: D000328:Adult; D000368:Aged; D001317:Austria; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008327:Mammography / Q000379:methods*; D008403:Mass Screening / Q000379:methods / Q000458:organization & administration*; D008875:Middle Aged; D010865:Pilot Projects