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W. Rzyman



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    P3.20 - Poster Session 3 - Early Detection and Screening (ID 174)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Imaging, Staging & Screening
    • Presentations: 1
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      P3.20-002 - First low dose chest CT lung cancer screening programs in Poland - overall results (ID 928)

      09:30 - 09:30  |  Author(s): W. Rzyman

      • Abstract

      Background
      To present results of the first four lung cancer (LC) screening programs based on low dose chest CT (LDCT) conducted in Poland.

      Methods
      Four LC screening programs were conducted in different Polish cities (Gdansk, Poznan, Szczecin, Warsaw) between 2008 and 2011. Algorithms used for patient`s selection for further diagnostics were based on IELCAP protocols with local modifications. The enrolled patients were ages 50-75, being either active smokers or with history of >20 pack years. The following data were analyzed: number of LC detected and resected in both protocols, and percentage of stage I cancers detected.

      Results
      34810 patients were screened in accordance with protocols. Results are presented in table I.

      Parameter G P W Sz All
      N[o ]of patients 8693 9357 1740 15020 34810
      LC detected 91 96 17 120 324
      LC stage I 58 52 12 83 205
      The overall detection rate was 1 cancer per 102 CTs and varied from 1/125 to 1/90 (1.05%, 1.03%, 1.0%, 0.86%, 0.98% respectively). The majority of cancers were diagnosed in stage I (64%, 55%, 70%, 69% 64.5% respectively), while this parameter does not exceed 30% in overall population treated by thoracic surgery in Poland. The differences between centers regarding both detection rate and stage I percentage were not significant (p=0.167 and p=0.599 respectively). However, if one compares the biggest center alone (Szczecin) vs all other ones together, the detection rate in Szczecin is significantly lower (p=0.0278).

      Conclusion
      The detection rate of all LC as well as stage I LC in the Polish LDCT screening programs is high and comparable in different centers.