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Table 4 Comparison of GI, delivery time and MUs among the three techniques

From: Advanced nasopharyngeal carcinoma radiotherapy with volumetric modulated arcs and the potential role of flattening filter-free beams

Parameters

RA-FFF

RA

IMRT

p value

p1

p2

p3

GI

98.53% ± 1.02%

98.49% ± 1.28%

98.66% ± 1.04%

0.746

—

—

—

Time(s)

152 ± 7

153 ± 7

493 ± 24

< 0.001

0.539

0.005

0.005

MUs

536 ± 46

501 ± 25

1199 ± 129

< 0.001

0.022

0.005

0.005

  1. Abbreviations: GI = gamma index; MUs = monitor units; Other abbreviations as in Table 2.
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Radiation Oncology

ISSN: 1748-717X

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