Table 2 Fidelity analysis for various geometric features and deformations.

From: Freeform fabrication of tissue-simulating phantom for potential use of surgical planning in conjoined twins separation surgery

Geometry

Deformation operation

Fidelity calculation

Standard Deviation

Mean error (mm)

Upper error (mm)

Lower error (mm)

random (1, 0, 0)

0

0

0

0

random (1, 1, 0)

0

0

0

0

random (1, 0, 0.1)

−0.03

3.18

−3.69

0.56

random (0, 1, 0)

0

0

0

0

random (1, 1, 0.5)

−0.13

5.33

−4.06

1.16

random (0, 1, 0.7)

−28

7.84

−8.09

1.36

random (1, 0, 0)

0

0

0

0

random (1, 1, 0)

0

0

0

0

random (1, 0, 0.2)

0.55

10

−2.9

1.75

random (0, 1, 0)

0

0

0

0

random (1, 1, 0.5)

0.31

9.48

−10.12

2.65

random (0, 1, 0.8)

1.91

10.23

−7.02

3

random (1, 0, 0)

0

0

0

0

random (1, 1, 0)

0

0

0

0

random (1, 0, 0.1)

0.35

3.19

−4.23

0.61

random (0, 1, 0)

0

0

0

0

random (1, 1, 0.3)

0.08

3.26

−3.26

0.86

random (0, 1, 0.7)

−0.12

3.75

−4.38

1.16

random (1, 0, 0)

0

0

0

0

random (1, 1, 0)

0

0

0

0

random (1, 0, 0.3)

−0.61

0.68

−3.14

0.81

random (0, 1, 0)

0

0

0

0

random (1, 1, 0.5)

−0.02

1.77

−1.56

0.59

random (0, 1, 0.7)

−0.1

2.35

−2.98

0.77

random (1, 0, 0)

−0.29

5.27

−4.21

0.59

random (1, 1, 0)

0

0

0

0

random (1, 0, 0.1)

0.19

7.17

−7.61

1.19

random (0, 1, 0)

0

0

0

0

random (0, 1, 0.3)

−0.21

8.19

−8.89

1.86

random (1, 1, 0.5)

0.63

8.19

−8.19

2.23