TABLE 1.
Percent mean dose differences from the RPA plan for selected contours from three anatomical sites
| Site/contour | RayStation‐CCC mean (LCL, UCL) a | Eclipse‐Acuros mean (LCL, UCL) a |
|---|---|---|
| Head and neck | ||
| Brain | −0.21 (−0.44, 0.01) | −0.24 (−0.42, −0.05) |
| CTV1 | 2.19 (1.04, 3.34) | −0.25 (−1.25, 0.75) |
| CTV2 | 1.26 (0.11, 2.40) | −0.22 (−0.72, 0.28) |
| CTV3 | 1.11 (−0.09, 2.31) | −0.36 (−0.82, 0.10) |
| Oral cavity | 1.47 (0.24, 2.71) | −0.37 (−0.72, −0.02) |
| Left submandibular gland | 1.71 (0.14, 3.27) | −0.94 (−1.59, −0.28) |
| Right submandibular gland | 1.74 (0.45, 3.04) | −0.98 (−1.57, −0.39) |
| Larynx | 2.28 (1.09, 3.47) | −0.97 (−1.57, −0.38) |
| Mandible | 1.11 (0.20, 2.02) | −1.60 (−2.39, −0.81) |
| PTV1 | 2.29 (1.00, 3.59) | −0.48 (−1.83, 0.88) |
| PTV2 | 2.18 (−1.19, 5.55) | −0.15 (−0.68, 0.37) |
| PTV3 | 1.55 (−0.03, 3.14) | −0.32 (−0.74, 0.10) |
| Left parotid | 0.49 (−0.61, 1.60) | −0.95 (−1.33, −0.57) |
| Right parotid | 0.43 (−0.63, 1.49) | −0.93 (−1.20, −0.66) |
| Cervix | ||
| Left femoral head | −1.78 (−2.78, −0.77) | 0.21 (−0.92, 1.34) |
| Right femoral head | −1.79 (−2.81, −0.77) | 0.19 (−0.93, 1.31) |
| L4 | −2.21 (−4.87, 0.45) | 0.49 (−4.43, 5.41) |
| L5 | −2.59 (−3.43, −1.74) | 0.48 (−1.31, 2.27) |
| Chest wall | ||
| Clinical chest wall | 1.51 (−1.65, 4.67) | −1.55 (−3.62, 0.52) |
| Clavicle | −0.86 (−2.20, 0.49) | −3.60 (−5.64, −1.56) |
| Heart | −0.17 (−0.68, 0.35) | −0.10 (−0.68, 0.49) |
| Humeral head | −0.34 (−1.18, 0.50) | −0.52 (−1.01, −0.03) |
| Left lung | −0.40 (−1.66, 0.86) | −0.36 (−1.97, 1.25) |
| Right lung | −0.34 (−1.69, 1.02) | −0.32 (−1.79, 1.15) |
| Ribcage | −0.17 (−1.05, 0.71) | −1.99 (3.59, −0.39) |
| Supraclavical | 0.23 (−1.33, 1.78) | −1.21 (−2.69, 0.28) |
| Spinal canal | −0.17 (−0.51, 0.17) | −0.14 (−0.35, 0.07) |
| Sternum | 0.61 (−0.56, 1.78) | −0.48 (−1.53, 0.57) |
Abbreviations: CCC, collapsed cone convolution; CTV, clinical target volume; LCL, lower control limit; PTV, planning target volume; RPA, Radiation Planning Assistant; UCL, upper control limit.
a
All values are percentages.