| Objective |
No point deduction |
-0.5 Point deduction |
-1.0 Point deduction |
| Chest wall coverage |
Covered from mid sternum medially, to mid axillary line laterally. |
If medial or lateral coverage is not at least to the mid sternum or mid axillary line
(displaced by ≥ 10mm) |
If medial and lateral
coverage are deficient (displaced by ≥ 10mm) |
|
Dose homogeneity in clinical target volume |
+/- ≤ 7% |
+/- 8-12% |
+/- > 12% |
| Minimization of lung irradiation |
Less than 2-cm of lung thickness involved in chest wall tangential fields |
Maximal lung
thickness is 2 cm
>2 cm; but ≤3 cm |
Maximal lung thickness
is >3 cm |
| Avoidance of heart |
Heart is entirely excluded from tangent fields |
If <1 cm of left
ventricle is within
the tangent fields |
If >1 cm of left
ventricle is treated in
tangent fields |
| D max |
< 110% |
110% - 115% |
> 115% |
