Research Article

A Digital Model to Simulate Effects of Bone Architecture Variations on Texture at Spatial Resolutions of CT, HR-pQCT, and μCT Scanners

Table 3

Deviations in noise and tissue mineralization (both in HU) resulting in identical changes of the texture parameters as the structure variations between the basic model and BFM6 (entropy and global inhomogeneity) or between basic model and PLM6 (local inhomogeneity, local anisotropy, and variogram slope). In parentheses: difference between the basic model and BFM3 or the basic model and BPM3, respectively.

EntropyGlobal inhomogeneityLocal inhomogeneityLocal anisotropyVariogram slope

Δ noise (10  m)4.7 (2.4)5570.9 (3708.4)2.2 (0.9)148.4 (85.3)149.5 (60.5)
Δ noise (90  m)10.4 (5.0)350.2 (208.8)16.8 (6.9)6.2 (1.7)37.0 (14.9)
Δ noise (250  m)12.4 (5.6)174.2 (109.7)1.8 (0.4)32.7 (15.6)55.1 (20.1)
Δ mineralization (10  m)124.1 (59.7)283.5 (126.0)209.3 (84.7)290.7 (138.7)168.9 (68.3)
Δ mineralization (90  m)475.8 (171.3)333.3 (129.0)220.3 (90.2)132.7 (43.3)69.5 (28.0)
Δ mineralization (250  m)218.8 (73.6)298.0 (132.7)7.6 (1.6)334.3 (195.8)146.3 (53.4)