Table 5 Correlation between shrinkage pattern and pathologic response
| Â | 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 |