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Table 4 Inter-fraction errors.

From: Semi-robotic 6 degree of freedom positioning for intracranial high precision radiotherapy; first phantom and clinical results

 

Translations (mm)

Rotations (°)

 

X

Y

Z

x

y

z

M

0

0.6

0

0.02

0.06

0.18

Σ

0.7

0.8

0.5

0.02

0.06

0.18

σ

0.8

0.1

0.7

0.26

0.28

0.44

  1. Results were obtained from registration of planning CT-with cone-beam CT (CBCT1), based on the cranium as region of interest, using grey value matching. group mean error(M), standard deviation(SD) of systematic errors(Σ), root-mean-square of random errors(σ)
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Radiation Oncology

ISSN: 1748-717X

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