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Table 2 Intrafraction errors measured by matching CBCTpost with CBCT setup/pre and resulting margins

From: Organ motion in linac-based SBRT for glottic cancer

Intrafraction thyroid cartilage motion (mm)

Error type

X

Y

Z

µ

0.1

0.6

0.6

∑

0.7

1.6

0.7

σ

1.0

1.5

0.6

M

2.4

5.1

2.2

  1. All other abbreviations are as in Table 1
  2. CBCTpost, scan made at the end of treatment; M, CTV-PTV margins
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Radiation Oncology

ISSN: 1748-717X

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