Table 3 Descriptions of the 29 perturbations assessed.

From: Reproducibility of CT-based radiomic features against image resampling and perturbations for tumour and healthy kidney in renal cancer patients

Number

Type

Perturbation

Description

1

N

N

AWGN

15

V

\(v_s-v_z\)

15 voxel-sizes by combining \(v_s^s\), \(v_s^M\), \(v_s^l\) with \(v_z\) in [1, 5]

1

V

Global assessment of the all 15 voxel-sizes

1

\(v_s^s\)

Resolution \(v_s^s\) kept fixed and \(v_z\) in [1, 5]

1

\(v_s^M\)

Resolution \(v_s^M\) kept fixed and \(v_z\) in [1, 5]

1

\(v_s^l\)

Resolution \(v_s^l\) kept fixed and \(v_z\) in [1, 5]

1

Z1

Resolution \(v_z=1\) kept fixed for all \(v_s^s\), \(v_s^M\), \(v_s^l\)

1

Z2

Resolution \(v_z=2\) kept fixed for all \(v_s^s\), \(v_s^M\), \(v_s^l\)

1

Z3

Resolution \(v_z=3\) kept fixed for all \(v_s^s\), \(v_s^M\), \(v_s^l\)

1

Z4

Resolution \(v_z=4\) kept fixed for all \(v_s^s\), \(v_s^M\), \(v_s^l\)

1

Z5

Resolution \(v_z=5\) kept fixed for all \(v_s^s\), \(v_s^M\), \(v_s^l\)

4

R

R+10

Dilation, volume variation equals to +10%

R-10

Erosion, volume variation equals to -10%

R-15

Erosion, volume variation equals to -15%

R-20

Erosion, volume variation equals to -20%