Table 2.
Weekly breast RT regimens compared over the periods of March 3 to May 4, 2019, (top panel) versus March 1 to May 2, 2020 (bottom panel)
| WBI/CW/HT Breast RT |
CF |
HF |
||
|---|---|---|---|---|
| 2019 | 50 Gy/25f | 42.56 Gy/16f | 42.4 Gy/16f | 40.05 Gy/15f |
| March week 1 | 1 | 6 | 1 | |
| 2 | 8 | 1 | ||
| 3 | 12 | |||
| 4 | 1 | 1 | 7 | 1 |
| 5 | 1 | 10 | ||
| April week 1 | 11 | |||
| 2 | 1 | 8 | ||
| 3 | 7 | |||
| 4 | 2 | 12 | 2 | |
| Total | 5 | 2 | 81 | 5 |
| 2020 | ||||
| March week 1 | 10 | 1 | ||
| 2 | 13 | |||
| 3 | 6 | |||
| 4 | 10 | |||
| 5 | 1 | 2 | ||
| April week 1 | 2 | |||
| 2 | 1 | |||
| 3 | 7 | |||
| 4 | 1 | 3 | ||
| Total | 0 | 1 | 40 | 16 |
Abbreviations: CF = conventional fractionation; CW = chestwall; f = fraction; HF = hypofractionation; HT = high tangent; RT = radiation therapy; WBI = whole breast irradiation.