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Table 3 Dose-volumetric evaluation and comparison between PTVs during the treatment

From: Retrospective study comparing MR-guided radiation therapy (MRgRT) setup strategies for prostate treatment: repositioning vs. replanning

Indices

Plan

Mean ± SD (%)

p-value

% of reproducible plana

Average difference (%)

Dmean

Soft

102.5 ± 0.6

0.099

100

0.1 ± 0.9

 

Adaptive

102.2 ± 0.3

 

100

−0.1 ± 0.5

D98%

Soft

96.6 ± 3.3

0.005*

77.9

−2.8 ± 4.1

 

Adaptive

99.1 ± 0.3

 

100

−0.2 ± 0.6

D95%

Soft

98.5 ± 2.6

0.011*

92.6

−1.8 ± 3.2

 

Adaptive

100

 

100

0

D2%

Soft

105.5 ± 1.0

< 0.001*

100

0.7 ± 1.0

 

Adaptive

104.6 ± 0.4

 

100

−0.4 ± 1.0

  1. *Statistically significant comparisons; a Percentage of plans with a difference of < 5% compared to the initial plan