Table 3: Average values of minimum and
maximum doses (± 1σ) to the PTV and corresponding improvement ratios for MLC-160 vs. m3
systems.
|
Group |
DPTV
(%) |
m3 |
MLC-160 |
IR
(%) |
p-value |
|
I (n = 36) |
Dmin |
0.98 ± 0.01 |
0.97 ± 0.01 |
-0.69 ± 1.10 |
<
0.001 |
|
|
Dmax |
1.04
± 0.01 |
1.04
± 0.01 |
0.01 ± 0.53 |
0.694 |
|
II
(n = 16) |
Dmin |
0.97
± 0.01 |
0.96
± 0.02 |
-0.41
± 1.54 |
0.315 |
|
|
Dmax |
1.08
± 0.02 |
1.08
± 0.02 |
-0.02
± 0.54 |
0.275 |
|
III
(n = 15) |
Dmin |
0.86
± 0.14 |
0.85
± 0.12 |
-0.39 ± 11.98 |
0.489 |
|
|
Dmax |
1.13
± 0.08 |
1.13 ± 0.07 |
-0.30
± 2.63 |
0.946 |
|
IV (n = 23) |
Dmin |
0.92 ± 0.08 |
0.88 ± 0.08 |
-3.58 ± 4.43 |
<
0.001 |
|
|
Dmax |
1.12 ± 0.06 |
1.12 ± 0.07 |
0.75 ± 3.13 |
0.153 |