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Table 4 Treatment delivery parameters

From: Fully automated volumetric modulated arc therapy planning for locally advanced rectal cancer: feasibility and efficiency

 

Manual-VMAT

(Mean ± SD)

Auto-VMAT

(Mean ± SD)

P values

Initial plan

 

γpassing rate (%)

100.0 ± 0.15

100.0 ± 0.04

0.675

 

Total MU

344.1 ± 43.9

406.3 ± 26.8

< 0.001

 

MCS

0.31 ± 0.09

0.27 ± 0.04

0.031

Boost plan

 

γpassing rate (%)

100.0 ± 0.05

100.0 ± 0.04

0.610

 

Total MU

279.8 ± 19.7

293.1 ± 17.3

0.012

 

MCS

0.34 ± 0.10

0.41 ± 0.08

0.012

  1. Abbreviations: MU, monitor unit; MCS, modulation complexity score; SD, standard deviation; VMAT, volumetric modulated arc therapy; criteria ofγpassing rate is dose difference of 3% and a distance to agreement of 2 mm (3%/2mm). The gamma pass rate of greater than 98% was the threshold to indicate robust delivery in this study
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Radiation Oncology

ISSN: 1748-717X

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