Table 3.
Dosimetric analysis showing the difference in the mean organ dosage between the 2 treatment groups
| All patients | Dose in Gy |
|||
|---|---|---|---|---|
| Total (n = 42) | Reduced RT dose ≤27 Gy (n = 16) | Standard RT dose ≥30 Gy (n = 26) | P value | |
| Mean absolute right kidney dose (SD) | 3.3 (2.6) | 2.6 (2.0) | 3.7 (2.9) | .177 |
| Mean absolute left kidney dose (SD) | 6.1 (4.4) | 5.1 (3.5) | 6.7 (4.9) | .256 |
| Mean absolute liver dose (SD) | 11.2 (3.5) | 8.8 (2.9) | 12.7 (3.1) | <0.001 |
| Mean V20% heart dose (SD) | 9.7% (6.6) | 5.5% (4.7) | 12.4% (6.2) | 0.001 |
| Mean absolute heart dose (SD) | 588.05 (277.86) | 406.67 (198.42) | 699.70 (262.64) | <0.001 |
Abbreviations: SD = standard deviation; V20 = percentage of an organ receiving at least 20 Gy.