Combining quantitative and qualitative breast density measures to assess breast cancer risk

Karla Kerlikowske, Lin Ma, Christopher G. Scott, Amir P. Mahmoudzadeh, Matthew R. Jensen, Brian L. Sprague, Louise M. Henderson, V. Shane Pankratz, Steven R. Cummings, Diana L Miglioretti, Celine M. Vachon, John A. Shepherd

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Background: Accurately identifying women with dense breasts (Breast Imaging Reporting and Data System [BI-RADS] heterogeneously or extremely dense) who are at high breast cancer risk will facilitate discussions of supplemental imaging and primary prevention. We examined the independent contribution of dense breast volume and BI-RADS breast density to predict invasive breast cancer and whether dense breast volume combined with Breast Cancer Surveillance Consortium (BCSC) risk model factors (age, race/ethnicity, family history of breast cancer, history of breast biopsy, and BI-RADS breast density) improves identifying women with dense breasts at high breast cancer risk. Methods: We conducted a case-control study of 1720 women with invasive cancer and 3686 control subjects. We calculated ORs and 95% CIs for the effect of BI-RADS breast density and Volpara™ automated dense breast volume on invasive cancer risk, adjusting for other BCSC risk model factors plus body mass index (BMI), and we compared C-statistics between models. We calculated BCSC 5-year breast cancer risk, incorporating the adjusted ORs associated with dense breast volume. Results: Compared with women with BI-RADS scattered fibroglandular densities and second-quartile dense breast volume, women with BI-RADS extremely dense breasts and third- or fourth-quartile dense breast volume (75% of women with extremely dense breasts) had high breast cancer risk (OR 2.87, 95% CI 1.84-4.47, and OR 2.56, 95% CI 1.87-3.52, respectively), whereas women with extremely dense breasts and first- or second-quartile dense breast volume were not at significantly increased breast cancer risk (OR 1.53, 95% CI 0.75-3.09, and OR 1.50, 95% CI 0.82-2.73, respectively). Adding continuous dense breast volume to a model with BCSC risk model factors and BMI increased discriminatory accuracy compared with a model with only BCSC risk model factors (C-statistic 0.639, 95% CI 0.623-0.654, vs. C-statistic 0.614, 95% CI 0.598-0.630, respectively; P < 0.001). Women with dense breasts and fourth-quartile dense breast volume had a BCSC 5-year risk of 2.5%, whereas women with dense breasts and first-quartile dense breast volume had a 5-year risk ≤ 1.8%. Conclusions: Risk models with automated dense breast volume combined with BI-RADS breast density may better identify women with dense breasts at high breast cancer risk than risk models with either measure alone.

Original languageEnglish (US)
Article number97
JournalBreast Cancer Research
Volume19
Issue number1
DOIs
StatePublished - Aug 22 2017

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Breast
Breast Neoplasms
Information Systems
Breast Density
Body Mass Index
Primary Prevention

Keywords

  • Breast cancer risk
  • Breast density
  • Dense volume

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Kerlikowske, K., Ma, L., Scott, C. G., Mahmoudzadeh, A. P., Jensen, M. R., Sprague, B. L., ... Shepherd, J. A. (2017). Combining quantitative and qualitative breast density measures to assess breast cancer risk. Breast Cancer Research, 19(1), [97]. https://doi.org/10.1186/s13058-017-0887-5

Combining quantitative and qualitative breast density measures to assess breast cancer risk. / Kerlikowske, Karla; Ma, Lin; Scott, Christopher G.; Mahmoudzadeh, Amir P.; Jensen, Matthew R.; Sprague, Brian L.; Henderson, Louise M.; Pankratz, V. Shane; Cummings, Steven R.; Miglioretti, Diana L; Vachon, Celine M.; Shepherd, John A.

In: Breast Cancer Research, Vol. 19, No. 1, 97, 22.08.2017.

Research output: Contribution to journalArticle

Kerlikowske, K, Ma, L, Scott, CG, Mahmoudzadeh, AP, Jensen, MR, Sprague, BL, Henderson, LM, Pankratz, VS, Cummings, SR, Miglioretti, DL, Vachon, CM & Shepherd, JA 2017, 'Combining quantitative and qualitative breast density measures to assess breast cancer risk', Breast Cancer Research, vol. 19, no. 1, 97. https://doi.org/10.1186/s13058-017-0887-5
Kerlikowske K, Ma L, Scott CG, Mahmoudzadeh AP, Jensen MR, Sprague BL et al. Combining quantitative and qualitative breast density measures to assess breast cancer risk. Breast Cancer Research. 2017 Aug 22;19(1). 97. https://doi.org/10.1186/s13058-017-0887-5
Kerlikowske, Karla ; Ma, Lin ; Scott, Christopher G. ; Mahmoudzadeh, Amir P. ; Jensen, Matthew R. ; Sprague, Brian L. ; Henderson, Louise M. ; Pankratz, V. Shane ; Cummings, Steven R. ; Miglioretti, Diana L ; Vachon, Celine M. ; Shepherd, John A. / Combining quantitative and qualitative breast density measures to assess breast cancer risk. In: Breast Cancer Research. 2017 ; Vol. 19, No. 1.
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abstract = "Background: Accurately identifying women with dense breasts (Breast Imaging Reporting and Data System [BI-RADS] heterogeneously or extremely dense) who are at high breast cancer risk will facilitate discussions of supplemental imaging and primary prevention. We examined the independent contribution of dense breast volume and BI-RADS breast density to predict invasive breast cancer and whether dense breast volume combined with Breast Cancer Surveillance Consortium (BCSC) risk model factors (age, race/ethnicity, family history of breast cancer, history of breast biopsy, and BI-RADS breast density) improves identifying women with dense breasts at high breast cancer risk. Methods: We conducted a case-control study of 1720 women with invasive cancer and 3686 control subjects. We calculated ORs and 95{\%} CIs for the effect of BI-RADS breast density and Volpara™ automated dense breast volume on invasive cancer risk, adjusting for other BCSC risk model factors plus body mass index (BMI), and we compared C-statistics between models. We calculated BCSC 5-year breast cancer risk, incorporating the adjusted ORs associated with dense breast volume. Results: Compared with women with BI-RADS scattered fibroglandular densities and second-quartile dense breast volume, women with BI-RADS extremely dense breasts and third- or fourth-quartile dense breast volume (75{\%} of women with extremely dense breasts) had high breast cancer risk (OR 2.87, 95{\%} CI 1.84-4.47, and OR 2.56, 95{\%} CI 1.87-3.52, respectively), whereas women with extremely dense breasts and first- or second-quartile dense breast volume were not at significantly increased breast cancer risk (OR 1.53, 95{\%} CI 0.75-3.09, and OR 1.50, 95{\%} CI 0.82-2.73, respectively). Adding continuous dense breast volume to a model with BCSC risk model factors and BMI increased discriminatory accuracy compared with a model with only BCSC risk model factors (C-statistic 0.639, 95{\%} CI 0.623-0.654, vs. C-statistic 0.614, 95{\%} CI 0.598-0.630, respectively; P < 0.001). Women with dense breasts and fourth-quartile dense breast volume had a BCSC 5-year risk of 2.5{\%}, whereas women with dense breasts and first-quartile dense breast volume had a 5-year risk ≤ 1.8{\%}. Conclusions: Risk models with automated dense breast volume combined with BI-RADS breast density may better identify women with dense breasts at high breast cancer risk than risk models with either measure alone.",
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AU - Kerlikowske, Karla

AU - Ma, Lin

AU - Scott, Christopher G.

AU - Mahmoudzadeh, Amir P.

AU - Jensen, Matthew R.

AU - Sprague, Brian L.

AU - Henderson, Louise M.

AU - Pankratz, V. Shane

AU - Cummings, Steven R.

AU - Miglioretti, Diana L

AU - Vachon, Celine M.

AU - Shepherd, John A.

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N2 - Background: Accurately identifying women with dense breasts (Breast Imaging Reporting and Data System [BI-RADS] heterogeneously or extremely dense) who are at high breast cancer risk will facilitate discussions of supplemental imaging and primary prevention. We examined the independent contribution of dense breast volume and BI-RADS breast density to predict invasive breast cancer and whether dense breast volume combined with Breast Cancer Surveillance Consortium (BCSC) risk model factors (age, race/ethnicity, family history of breast cancer, history of breast biopsy, and BI-RADS breast density) improves identifying women with dense breasts at high breast cancer risk. Methods: We conducted a case-control study of 1720 women with invasive cancer and 3686 control subjects. We calculated ORs and 95% CIs for the effect of BI-RADS breast density and Volpara™ automated dense breast volume on invasive cancer risk, adjusting for other BCSC risk model factors plus body mass index (BMI), and we compared C-statistics between models. We calculated BCSC 5-year breast cancer risk, incorporating the adjusted ORs associated with dense breast volume. Results: Compared with women with BI-RADS scattered fibroglandular densities and second-quartile dense breast volume, women with BI-RADS extremely dense breasts and third- or fourth-quartile dense breast volume (75% of women with extremely dense breasts) had high breast cancer risk (OR 2.87, 95% CI 1.84-4.47, and OR 2.56, 95% CI 1.87-3.52, respectively), whereas women with extremely dense breasts and first- or second-quartile dense breast volume were not at significantly increased breast cancer risk (OR 1.53, 95% CI 0.75-3.09, and OR 1.50, 95% CI 0.82-2.73, respectively). Adding continuous dense breast volume to a model with BCSC risk model factors and BMI increased discriminatory accuracy compared with a model with only BCSC risk model factors (C-statistic 0.639, 95% CI 0.623-0.654, vs. C-statistic 0.614, 95% CI 0.598-0.630, respectively; P < 0.001). Women with dense breasts and fourth-quartile dense breast volume had a BCSC 5-year risk of 2.5%, whereas women with dense breasts and first-quartile dense breast volume had a 5-year risk ≤ 1.8%. Conclusions: Risk models with automated dense breast volume combined with BI-RADS breast density may better identify women with dense breasts at high breast cancer risk than risk models with either measure alone.

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KW - Breast cancer risk

KW - Breast density

KW - Dense volume

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