Table 3 Metastases and treatment characteristics
From: Radiosurgery and fractionated stereotactic body radiotherapy for patients with lung oligometastases
LM and treatment characteristics | SFRS (n=45) | fSBRT (n=49) | p-value |
|---|---|---|---|
Metastasis diameter (mm) | |||
Median | 12.0 | 16.0 | 0.003 |
Range | 5.0-35.0 | 5.0-70.0 | |
Metastasis PTV (cm3) | |||
Median | 9.9 | 24.0 | <0.001 |
Range | 2.4-90.8 | 5.8-164.5 | |
Metastasis location | |||
peripheral | 32 | 25 | 0.092 |
central | 13 | 24 | |
Metastasis histology (CRC vs. non-CRC) | |||
CRC | 8 | 21 | 0.009 |
Non-CRC | 37 | 28 | |
PTV-encompassing prescription dose (Gy) | |||
Median | 24 | 45 | <0.001 |
Range | 17-26 | 20-60 | |
PTV-encompassing single dose (Gy) | |||
Median | 24 | 9.6 | <0.001 |
Range | 17-26 | 4-16 | |
Biological effective dose (Gy) | |||
Median | 81.6 | 105.6 | 0.015 |
Range | 45.9-93.6 | 42.6 – 151.2 | |