Table 1 Clinical, pathologic and initial imaging characteristics of consenting subjects (n = 28) and the analyzed subset (n = 15)
Entire cohort | Analysis cohort | |
|---|---|---|
n = 28 | n = 15 | |
Age (years) | ||
Median (range) | 68 (47–87) | 72 (53–87) |
Histology n (%) | ||
Invasive Ductal | 27 (96) | 15 (100) |
Ductal Carcinoma in Situ | 1 (4) | 0 |
Pathologic tumour size (cm) | ||
Median (range) | 1.2 (0.3 – 2.5) | 1.4 (0.8 – 2.5) |
Grade (Invasive Ductal) n (%) | ||
I | 8 (30) | 6 (40) |
II | 16 60) | 8 (53) |
III | 3 (11) | 1(7) |
Estrogen receptor status | ||
Positive | 26 (92.8) | 14 (93.3) |
Laterality | ||
Right | 12 (42.8) | 6 (40.0) |
Left | 16 (57.2) | 9 (60.0) |
Seroma location | ||
Inner/central | 11 (39.3) | 5(33.3) |
Lower/outer | 17 (60.7) | 10 (66.7) |
US clarity score | ||
Mean | 2.7 | 3.1 |
CT clarity score | ||
Mean | 3.1 | 3.6 |
Breast volume (cc) | ||
Mean (range) | 1732 (712 – 3877) | 1429 (711 – 2088) |
Seroma volume (cc) | ||
Mean (range) | 32 (7 – 157) | 21 (6 – 50) |
Seroma: breast ratio | ||
Mean (range) | 0.018 ± 0.015 | 0.0.015 ± 0.013 |
BCS to CT simulation* (weeks) | ||
Mean (range) | 8.8 (4.4 – 13.4) | 9.5 (5.9 – 13.3) |