We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Automated volumetric breast density measures: differential change between breasts in women with and without breast cancer.
- Authors
Brandt, Kathleen R.; Scott, Christopher G.; Miglioretti, Diana L.; Jensen, Matthew R.; Mahmoudzadeh, Amir P.; Hruska, Carrie; Ma, Lin; Wu, Fang Fang; Cummings, Steven R.; Norman, Aaron D.; Engmann, Natalie J.; Shepherd, John A.; Winham, Stacey J.; Kerlikowske, Karla; Vachon, Celine M.
- Abstract
<bold>Background: </bold>Given that breast cancer and normal dense fibroglandular tissue have similar radiographic attenuation, we examine whether automated volumetric density measures identify a differential change between breasts in women with cancer and compare to healthy controls.<bold>Methods: </bold>Eligible cases (n = 1160) had unilateral invasive breast cancer and bilateral full-field digital mammograms (FFDMs) at two time points: within 2 months and 1-5 years before diagnosis. Controls (n = 2360) were matched to cases on age and date of FFDMs. Dense volume (DV) and volumetric percent density (VPD) for each breast were assessed using Volpara™. Differences in DV and VPD between mammograms (median 3 years apart) were calculated per breast separately for cases and controls and their difference evaluated by using the Wilcoxon signed-rank test. To simulate clinical practice where cancer laterality is unknown, we examined whether the absolute difference between breasts can discriminate cases from controls using area under the ROC curve (AUC) analysis, adjusting for age, BMI, and time.<bold>Results: </bold>Among cases, the VPD and DV between mammograms of the cancerous breast decreased to a lesser degree (- 0.26% and - 2.10 cm3) than the normal breast (- 0.39% and - 2.74 cm3) for a difference of 0.13% (p value < 0.001) and 0.63 cm3 (p = 0.002), respectively. Among controls, the differences between breasts were nearly identical for VPD (- 0.02 [p = 0.92]) and DV (0.05 [p = 0.77]). The AUC for discriminating cases from controls using absolute difference between breasts was 0.54 (95% CI 0.52, 0.56) for VPD and 0.56 (95% CI, 0.54, 0.58) for DV.<bold>Conclusion: </bold>There is a small relative increase in volumetric density measures over time in the breast with cancer which is not found in the normal breast. However, the magnitude of this difference is small, and this measure alone does not appear to be a good discriminator between women with and without breast cancer.
- Subjects
BREAST cancer; WILCOXON signed-rank test; BREAST; DENSITY; RECEIVER operating characteristic curves; PHYLLODES tumors
- Publication
Breast Cancer Research, 2019, Vol 21, Issue 1, pN.PAG
- ISSN
1465-5411
- Publication type
journal article
- DOI
10.1186/s13058-019-1198-9