Table 2.
Radiotherapy details.
| Radiotherapy details (n = 94) | |
|---|---|
| Timing of radiation | |
| Adjuvant (after surgery) | 62 (66) |
| Recurrent (at progression) | 25 (26.6) |
| Radical (surgery not feasible) | 7 (7.4) |
| Dose of RTa (100% isodose dose) | |
| 4500–5040 cGy | 13 (13.8) |
| 5041–5400 cGy | 41 (43.6) |
| >5400 cGy | 40 (42.6) |
| Dose per fraction (cGy) (100% isodose dose) | |
| 180 | 19 (20.2) |
| 181–200 | 69 (73.4) |
| >200 | 6 (6.4) |
| Technique of RTa | |
| Stereotactic radiotherapy No of non-coplanar beams range (4–14) |
63 (67) |
| 3-dimensional conformal radiotherapy (2 lateral and 1 vertex coplanar beams) |
5 (5.3) |
| Conventional (3 fields −23; 2 fields 3) | 26 (27.7) |
| Beam energy | |
| 6 MVb | 90 (95.7) |
| 15 MVb | 2 (2.1) |
| Cobalt 60 | 2 (2.1) |
a
Radiation therapy (RT).
b
Megavoltage.