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Portrait of Sophia Zackrisson. Photo

Sophia Zackrisson

Research group manager, Principal investigator, Professor, MD

Portrait of Sophia Zackrisson. Photo

Early screening outcomes before, during, and after a randomized controlled trial with digital breast tomosynthesis

Author

  • Åsne Sørlien Holen
  • Marie Burns Bergan
  • Christoph I. Lee
  • Sophia Zackrisson
  • Nataliia Moshina
  • Hildegunn Siv Aase
  • Ingfrid Salvesen Haldorsen
  • Solveig Hofvind

Summary, in English

Purpose: To describe and compare early screening outcomes before, during and after a randomized controlled trial with digital breast tomosynthesis (DBT) including synthetic 2D mammography versus standard digital mammography (DM) (To-Be 1) and a follow-up cohort study using DBT (To-Be 2). Methods: Retrospective results of 125,020 screening examinations from four consecutive screening rounds performed in 2014–2021 were described and compared for pre-To-Be 1 (DM), To-Be 1 (DM or DBT), To-Be 2 (DBT), and post-To-Be 2 (DM) cohorts. Descriptive analyses of rates of recall, biopsy, screen-detected and interval cancer, distribution of histopathologic tumor characteristics and time spent on image interpretation and consensus were presented for the four rounds including five cohorts, one cohort in each screening round except for the To-Be 1 trail, which included a DBT and a DM cohort. Odds ratios (OR) with 95% CIs was calculated for recall and cancer detection rates. Results: Rate of screen-detected cancer was 0.90% for women screened with DBT in To-Be 2 and 0.64% for DM in pre-To-Be 1. The rates did not differ for the To-Be 1 DM (0.61%), To-Be 1 DBT (0.66%) and post-To-Be 2 DM (0.67%) cohorts. The interval cancer rates ranged between 0.13% and 0.20%. The distribution of histopathologic tumor characteristics did not differ between the cohorts. Conclusions: Screening all women with DBT following a randomized controlled trial in an organized, population-based screening program showed a temporary increase in the rate of screen-detected cancer.

Department/s

  • LU Profile Area: Light and Materials
  • LTH Profile Area: Photon Science and Technology
  • LUCC: Lund University Cancer Centre
  • EpiHealth: Epidemiology for Health
  • Radiology Diagnostics, Malmö

Publishing year

2023-10

Language

English

Publication/Series

European Journal of Radiology

Volume

167

Document type

Journal article

Publisher

Elsevier

Topic

  • Cancer and Oncology

Keywords

  • Breast neoplasm
  • Digital breast tomosynthesis
  • Digital mammography
  • Mass screening
  • Randomized controlled trial

Status

Published

Research group

  • Radiology Diagnostics, Malmö

ISBN/ISSN/Other

  • ISSN: 0720-048X