| Head-And-Neck(66Gy/33#) |
| Grid Sizes(mm) |
| Cases |
3.0 |
5.0 |
10.0 |
| |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
| Case1 |
96.18% |
1.39% |
0.13% |
96.03% |
1.85% |
0.25%
|
95.01% |
1.78 |
0.09% |
| Case2 |
95.55% |
0.11% |
0.00% |
95.45% |
0.96% |
0.03%
|
95.22% |
0.15% |
0.00% |
| Case3 |
95.07% |
1.23% |
0.06% |
95.72% |
3.24% |
0.66%
|
95.40% |
2.75% |
0.00% |
| Case4 |
95.56% |
0.30% |
0.00% |
95.05% |
1.85% |
0.39% |
95.22% |
0.59% |
0.00% |
| Avg. |
95.59% |
0.76% |
0.05% |
95.56% |
1.98% |
0.33% |
95.21% |
1.32% |
0.02% |
| Std.Dev |
0.2470 |
0.5690 |
0.6180 |
0.4030 |
0.9410 |
0.2630 |
0.1590 |
0.118 |
0.420 |
|
| (a) |
| Pelvis(Carcinoma Cervix)[50Gy/25#] |
| Grid Sizes(mm) |
| Cases |
3.0 |
5.0 |
10.0 |
| |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
| Case1 |
97.79% |
0.31% |
0.00% |
97.75% |
0.38% |
0.00% |
96.86% |
0.17% |
0.00% |
| Case2 |
96.07% |
0.27% |
0.00% |
96.09% |
0.17% |
0.00% |
96.13% |
0.99% |
0.00% |
| Case3 |
95.58% |
0.84% |
0.00% |
95.59% |
0.23% |
0.00% |
95.49% |
1.00% |
0.00% |
| Case4 |
96.02% |
0.20% |
0.01% |
95.26% |
0.08% |
0.00% |
95.14% |
0.65% |
0.30% |
| Avg. |
96.37% |
0.41% |
0.00% |
96.17% |
0.22% |
0.00% |
95.91% |
0.70% |
0.08% |
| Std.Dev |
0.9751 |
0.2924 |
0.0050 |
1.1056 |
0.1260 |
0.0000 |
0.7572 |
0.3905 |
0.15 |
|
| (b) |
| Brain(54Gy/27#) |
| Grid Sizes(mm) |
| Cases |
3.0 |
5.0 |
10.0 |
| |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
V95% |
V107% |
V110% |
| Case1 |
98.33% |
0.00% |
0.00% |
98.56% |
0.27% |
0.00% |
96.16% |
0.95% |
0.15% |
| Case2 |
96.80% |
1.13% |
0.00% |
96.08% |
1.39% |
0.00% |
95.02% |
3.25% |
0.37% |
| Case3 |
95.41% |
1.42% |
0.00% |
95.30% |
3.22% |
0.02% |
95.31% |
2.55% |
0.00% |
| Case4 |
95.15% |
2.34% |
0.20% |
95.17% |
2.97% |
0.25% |
95.44% |
2.19% |
0.16% |
| Avg. |
96.42% |
1.22% |
0.05% |
96.28% |
1.96% |
0.07% |
95.48% |
2.24% |
0.17% |
| Std.Dev |
1.4634 |
0.9645 |
0.0946 |
1.5738 |
1.3890 |
0.1220 |
0.4845 |
0.8340 |
0.152 |
|
| (c) |
| Table 1: (a), (b) and (c) shows target volume averaged dose parameters at CT with varying grid sizes for different sites viz. Head & Neck, Pelvis & Brain. Values are presented as a percentage of Dpres of PTV. |
