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Table 3 The correlation between the initial pattern of enhancement in the baseline study and the post-NAC shrinkage patterns

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

  Solitary (n = 26/81, 32.1%) Grouped (n = 13/81, 16%) Separated (n = 32/81, 39.5%) Replaced (n = 10/81, 12.4%)
N % N % N % N %
Complete response (n = 20/81, 24.75%) 6/26 23% 5/13 38.5% 8/32 25% 1/10 10%
Type I: concentric (n = 24/81, 29.6%) 20/26 77%   4/32 12.5%
Type II: concentric with surrounding lesions (n = 15/81, 18.5%)   1/13 8% 14/32 43.7%
Type III: residual multi-nodular (n = 9/81, 11.1%)   5/13 38.5% 2/32 6.3% 2/10 20%
Type IV: diffuse enhancement (n = 9/81, 11.1%)   2/13 15% 7/10 70%
No response (n = 4/81, 4.95%)    4/32 12.5%