Precision science on incidence and progression of early-detected small breast invasive cancers by mammographic features

Rene Wei Jung Chang, Shu Lin Chuang, Chen Yang Hsu, Amy Ming Fang Yen, Wendy Yi Ying Wu, Sam Li Sheng Chen, Jean Ching Yuan Fann, Laszlo Tabar, Robert A. Smith, Stephen W. Duffy, Sherry Yueh Hsia Chiu, Hsiu Hsi Chen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The aim was to evaluate how the inter-screening interval affected the performance of screening by mammographic appearances. This was a Swedish retrospective screening cohort study with information on screening history and mammography features in two periods (1977–1985 and 1996–2010). The pre-clinical incidence and the mean sojourn time (MST) for small breast cancer allowing for sensitivity by mammographic appearances were estimated. The percentage of interval cancer against background incidence (I/E ratio) was used to assess the performance of mammography screening by different inter-screening intervals. The sensitivity-adjusted MSTs (in years) were heterogeneous with mammographic features, being longer for powdery and crushed stone-like calcifications (4.26, (95% CI, 3.50–5.26)) and stellate masses (3.76, (95% CI, 3.15–4.53)) but shorter for circular masses (2.65, (95% CI, 2.06–3.55)) in 1996–2010. The similar trends, albeit longer MSTs, were also noted in 1977–1985. The I/E ratios for the stellate type were 23% and 32% for biennial and triennial screening, respectively. The corresponding figures were 32% and 43% for the circular type and 21% and 29% for powdery and crushed stone-like calcifications, respectively. Mammography-featured progressions of small invasive breast cancer provides a new insight into personalized quality assurance, surveillance, treatment and therapy of early-detected breast cancer.

Original languageEnglish
Article number1855
Pages (from-to)1-14
Number of pages14
Issue number7
Publication statusPublished - Jul 2020


  • Breast cancer
  • Interval cancer
  • Mammography
  • Sensitivity
  • Sojourn time

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


Dive into the research topics of 'Precision science on incidence and progression of early-detected small breast invasive cancers by mammographic features'. Together they form a unique fingerprint.

Cite this