Table 2.
Volume (cc) of spinal cord receiving 10 Gy for each plan category
| Target Location | DFA Plans | DPA Plans | NDFA Plans | NDPA Plans | |
|---|---|---|---|---|---|
| C5 | Mean | 0.3011 | 0.3243 | 0.3816 | 0.3824 |
| Standard Deviation | 0.0545 | 0.0646 | 0.1245 | 0.0967 | |
| Minimum | 0.1938 | 0.2115 | 0.2890 | 0.1668 | |
| Maximum | 0.4084 | 0.5135 | 0.5175 | 0.5242 | |
| C6 | Mean | 0.2872 | 0.3416 | 0.3500 | 0.3587 |
| Standard Deviation | 0.0686 | 0.0769 | 0.0707 | 0.0504 | |
| Minimum | 0.1406 | 0.1638 | 0.2210 | 0.2348 | |
| Maximum | 0.4289 | 0.5278 | 0.5331 | 0.5624 | |
| C7 | Mean | 0.3251 | 0.3773 | 0.2914 | 0.2977 |
| Standard Deviation | 0.0775 | 0.0719 | 0.0665 | 0.0608 | |
| Minimum | 0.1682 | 0.2177 | 0.1511 | 0.1964 | |
| Maximum | 0.4835 | 0.4967 | 0.5320 | 0.4320 |
DFA: with depressor, full arc; DPA: with depressor, partial arc; NDFA: no depressor, full arc; NDPA: no depressor, partial arcs