Table 3 Displacement applied in translation and rotation for measurement of residual error from the IGRT system.

From: A new registration algorithm of electronic portal imaging devices images based on the automatic detection of bone edges during radiotherapy

Simulated error type

Translation (mm)

Rotation (°)

X-axis (medio-lateral)

Y-axis (anterio-posterio)

Z-axis (cranio-caudal)

X-axis

Z-axis

1

3

− 3

2

− 1

− 2

2

− 1

5

− 2

− 1

− 2

3

2

1

6

2

1

4

2

− 3

− 2

3

− 2

5

5

2

− 1

− 1

0

6

1

6

− 2

1

− 2

7

− 2

1

3

− 2

− 1

8

3

5

2

− 2

− 3

9

4

0

− 3

− 2

0

10

− 7

− 2

0

1

3

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