Case Report
Early Experience of Helical Tomotherapy for Hepatobiliary Radiotherapy
Table 2
Dosimetric constraints for each organ at risk: recommended dose-volume limits from Quantec [
15] and French guidelines [
16].
| Normal liver | Median dose <28 Gy (in 2-Gy fractions) | V30 < 50% |
| Right kidney | Maximum dose of 20 Gy to the total kidney | Mean dose < 18 Gy | Right lung | V20 < 20% | Spinal cord | Maximum dose of 45 Gy |
|
|
Vx: Percentage of the organ at risk receiving more than x dose.
|