Table 2 Summary of the DVH analysis for the CTV, PTV and Organs at Risk
From: Stereotactic body radiotherapy (sbrt) in lung oligometastatic patients: role of local treatments
Parameter | Objective | Mean ± SD | Range |
|---|---|---|---|
CTV | |||
Volume = 13.9 ± 25.8 cm3 Range = [.5 – 183.6] cm3 | |||
Mean [Gy] | 100% | 101.4 ± 1.7 | [98.4 - 106.4] |
V 98% [%] | >98% | 98.1 ± 3.4 | [80.3 - 100.0] |
D 99% [Gy] | Maximize | 98.25 ± 1.7 | [94.3 - 103.2] |
D 1% [Gy] | Minimize | 104.3 ± 2.1 | [99.8 - 112.9] |
PTV | |||
Volume = 42.3 ± 51.2 cm3 Range = [2.5 – 333.1] cm3 | |||
Mean [Gy] | 100% | 100.3 ± 0.3 | [96.8 - 104.9] |
V 95% [%] | >95% | 96.7 ± 1.9 | [90.2 - 99.9] |
D 99% [Gy] | Maximize | 93.1 ± 2.0 | [89.5 - 96.6] |
D 1% [Gy] | Minimize | 104.8 ± 1.8 | [101.9 - 112.9] |
Lungs | |||
Mean [Gy] | <4 Gy | 3.7 ± 3.8 | [0.5 - 16.8] |
V 5Gy [%] | <30% | 17.9 ± 18.8 | [0.1 - 78.2] |
V 10Gy [%] | <20% | 11.2 ± 14.2 | [0.1 - 65.8] |
V 20Gy [%] | <10% | 5.2 ± 7.4 | [0.0 - 34.6] |
Spinal cord | |||
D 1% [Gy] | <20 Gy | 10.2 ± 5.6 | [2.2 - 21.7] |
Heart | |||
D 1% [Gy] | <30 Gy | 11.3 ± 10.9 | [0.5 - 28.6] |
Esophagus | |||
D 1% [Gy] | <30 Gy | 16.3 ± 11.5 | [5.1 - 36.1] |