表 2.
不同体位下的肠道和膀胱的剂量学参数比较
Comparison of scores and dosimetric parameters of the bowel and bladder in different positions
Structure | Parameter | Score (Supine) | Volume/Dose (Supine) | Score (Prone) | Volume/Dose (Prone) |
"a" represents significantly difference (P < 0.05). | |||||
Rectum | D60% (Gy) | 5.13±1.73 | 44.80±6.45 | 5.98±1.91a | 43.64±6.99a |
Small intestine | V40Gy (cm3) | 1.29±0.79 | 98.01±62.88 | 1.70±0.60a | 66.65±58.43a |
V30Gy (cm3) | 1.49±0.5 | 274.41±278.96 | 1.81±0.44a | 171.71±100.77a | |
Colon | V40Gy (cm3) | 1.40±0.73 | 86.58±48.82 | 1.70±0.58a | 68.48±48.44a |
V30Gy (cm3) | 1.95±0.21 | 133.79±74.74 | 1.96±0.19 | 100.49±65.94a | |
Bladder | D35% (Gy) | 8.98±0.90 | 45.08±6.13 | 9.22±0.81a | 44.25±6.63a |