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Table 1 Mean, standard deviations and range of displacement measures for the entire study cohort

From: Consistency in electronic portal imaging registration in prostate cancer radiation treatment verification

Image and Direction of Displacement

Number of Displacement Measures

Mean Displacement(mm)

Standard Deviation (mm)

Range of Displacement

AP LR

1200

-0.99

2.66

-9.70 to 5.30

AP SI

1200

-1.06

2.44

-11.60 to 18.30

Lat AP

1200

0.79

3.16

-7.60 to 13.60

Lat SI

1200

-0.52

2.71

-10.60 to 16.40

  1. Abbreviations: AP LR = anterior-posterior image, left-right direction; AP SI = anterior-posterior image, superior-inferior direction; Lat AP = lateral image, anterior-posterior direction; Lat SI = lateral image, superior-inferior direction