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Table 5 Correlation between shrinkage pattern and pathologic response

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

  Pathologic response P value
Responder 60/80 (75%) Non-responder 20/80 (25%)
Count % Count %
Complete response (n = 20/81, 24.75%) 20/60 33.3% 0 0% 0.002
Type I: concentric (n = 24/81, 29.6%) 17/60 28.3% 7/21 33.3% 0.666
Type II: concentric with surrounding lesions (n = 15/81, 18.5%) 7/60 11.7% 8/21 38.1% 0.018
Type III: residual multi-nodular (n = 9/81, 11.1%) 8/60 13.3% 1/21 4.8% 0.434
Type IV: diffuse enhancement (n = 9/81, 11.1%) 7/60 11.7% 2/21 9.5% 1
No response (n = 4/81, 4.95%) 1/60 1.7% 3/21 14.3% 0.052