Skip to main content

Table 1 Comparison of translational and rotational errors acquired by the kV CBCT and the reference CT with and without SGRT

From: Evaluation of initial patient setup methods for breast cancer between surface-guided radiation therapy and laser alignment based on skin marking in the Halcyon system

 

Translational error (cm)

Rotational error (°)

Vertical

Longitudinal

Lateral

Pitch

Yaw

Roll

LAS

 Min

0.03

0.02

0.07

0.04

0.12

0.04

 Median

0.28

0.19

0.18

0.18

0.45

0.26

 Quartile 1

0.15

0.12

0.13

0.1

0.31

0.14

 Quartile 3

0.36

0.25

0.25

0.45

0.74

0.34

 Max

0.74

0.61

0.52

1.24

1.04

1.09

 Mean

0.27

0.2

0.21

0.32

0.51

0.29

SGRT

 Min

0.02

0.05

0.06

0.03

0.06

0.02

 Median

0.15

0.2

0.18

0.25

0.45

0.19

 Quartile 1

0.12

0.15

0.15

0.14

0.33

0.11

 Quartile 3

0.25

0.34

0.22

0.39

0.68

0.25

 Max

0.56

0.89

0.38

0.94

1.14

0.8

 Mean

0.19 (p < 0.05)

0.29 (p < 0.05)

0.19 (NS)

0.3 (NS)

0.51 (NS)

0.19 (p < 0.05)

  1. LAS laser alignment based on skin marking, SGRT surface guided radiation therapy, NS not significant
Back to article page

Radiation Oncology

ISSN: 1748-717X

Contact us