From: Dosimetric effect of CT contrast agent in CyberKnife treatment plans
OARs | No. of cases | Baseline [HU] | Max changes [HU] | Average changes [HU] |
---|---|---|---|---|
Aorta | 5 | 53 | 223 | 171 ± 40 |
Heart | 5 | 12 | 164 | 155 ± 7 |
Kidney | 10 | 13 | 158 | 124 ± 33 |
Lung | 14 | -650 | 121 | 45 ± 32 |
Liver | 12 | 40 | 64 | 45 ± 14 |
Stomach | 3 | -64 | 55 | 40 ± 16 |
Rectum | 6 | 17 | 37 | 33 ± 5 |
Urethra | 5 | 37 | 42 | 32 ± 9 |
Esophagus | 14 | -126 | 67 | 31 ± 14 |
PTV | 22 | -16 | 113 | 30 ± 28 |
Bowel | 17 | -72 | 40 | 27 ± 9 |
Bladder | 6 | 11 | 14 | 8 ± 3 |
Spinal cord/cauda equina | 17 | 41 | 12 | 6 ± 3 |
Femur head | 5 | 234 | 4 | 2 ± 1 |