Quantitative background parenchymal enhancement to predict recurrence after neoadjuvant chemotherapy for breast cancer

Sci Rep. 2019 Dec 16;9(1):19185. doi: 10.1038/s41598-019-55820-5.

Abstract

Breast background parenchymal enhancement (BPE) is an increasingly studied MRI parameter that reflects the microvasculature of normal breast tissue, which has been shown to change during neoadjuvant chemotherapy (NAC) for breast cancer. We aimed at evaluating the BPE in patients undergoing NAC and its prognostic value to predict recurrence. MRI BPE was visually and quantitatively evaluated before and after NAC in a retrospective cohort of 102 women with unilateral biopsy-proven invasive breast cancer. Pre-therapeutic BPE was not predictive of pathological response or recurrence. Quantitative post-therapeutic BPE was significantly decreased compared to pre-therapeutic value. Post-therapeutic quantitative BPE significantly predicted recurrence (HR = 6.38 (0.71, 12.06), p < 0.05).

MeSH terms

  • Breast / diagnostic imaging
  • Breast / pathology
  • Breast Neoplasms / diagnostic imaging
  • Breast Neoplasms / pathology*
  • Breast Neoplasms / therapy*
  • Disease-Free Survival
  • Female
  • Follow-Up Studies
  • Humans
  • Magnetic Resonance Imaging*
  • Middle Aged
  • Multivariate Analysis
  • Neoadjuvant Therapy*
  • Neoplasm Recurrence, Local / diagnostic imaging
  • Neoplasm Recurrence, Local / pathology*
  • Proportional Hazards Models