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Table 8 Correlation of tumor diameter obtained from CESM with histological tumor diameter according to the shrinkage patterns and biomarker status of the tumors

From: Predicting response to neo-adjuvant chemotherapy and assessment of residual disease in breast cancer using contrast-enhanced spectral mammography: a combined qualitative and quantitative approach

  Histology diameter mean CESM diameter mean Mean size discrepancy Correlation coefficient P value
Shrinkage pattern
Type I 2.8 cm 2.7 cm 0.89 cm 0.615 0.001*
Type II 3.1 cm 2.5 cm 0.89 cm 0.768 0.001*
Type III 7.4 cm 6.6 cm 1.95 cm 0.640 0.063
Type IV 8.0 cm 8.2 cm 1.37 cm 0.714 0.031*
All types 3.3 cm 3.1 cm 0.85 cm 0.921 < 0.001
Biomarker status
HER2-positive 3.6 cm 3.5 cm 0.56 cm 0.988 < 0.001
Triple negative 1.6 cm 1.5 cm 0.44 cm 0.932 < 0.001
Luminal A 3.8 cm 3.5 cm 1.13 cm 0.834 < 0.001
Luminal B 4.2 cm 3.5 cm 1.17 cm 0.840 0.036
HER2-positive 3.6 cm 3.5 cm 0.56 cm 0.988 < 0.001