Table 1 Characteristics of the 9 different ROI configurations defined for both the isotropic and the anisotropic phantom.

From: The ImSURE phantoms: a digital dataset for radiomic software benchmarking and investigation

Feature family

Isotropic phantom

Anisotropic phantom

Total Number of ROI

90

90

Voxel spacing [mm]

1.00 × 1.00

0.977 × 0.977

Slice Thickness [mm]

1.00

3.00

Voxel volume [mm3]

1

2.86

ROI Volumes [mm3]

Bean - Small

120

125.89

Bean - Medium

998

881.20

Bean - Large

7964

7896.43

Sphere - Small

123

120.16

Sphere - Medium

1020

975.61

Sphere - Large

8025

7990.85

Cube - Small

125

143.05

Cube - Medium

1000

858.31

Cube - Large

8000

8010.87

  1. The volumes reported in the table correspond to the number of voxels in each ROI multiplied by voxel dimension.
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