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Table 1 TBS of a Lumbar Spine Phantom with Various Thicknesses of Soft Tissue Equivalent Material

From: Simulated increased soft tissue thickness artefactually decreases trabecular bone score: a phantom study

Soft Hologic Fast Array (Hfa) Hologic HD (Hhd) iDXA
Tissue    95%CI    95%CI    95 % CI
(cm) mean SD Lower Upper mean SD Lower Upper mean SD Lower Upper
0 1.379 0.018 1.372 1.386 1.430 0.009 1.427 1.433 1.423 0.005 1.421 1.424
1 1.355* 0.018 1.348 1.361 1.398* 0.008 1.395 1.401 1.367* 0.004 1.366 1.369
2.5 1.287* 0.014 1.282 1.293 1.335* 0.010 1.332 1.339 1.248* 0.005 1.246 1.249
3.5 1.243* 0.015 1.238 1.249 1.286* 0.016 1.280 1.292 1.170* 0.006 1.167 1.172
5 1.161* 0.023 1.153 1.170 1.120* 0.017 1.194 1.207 1.037* 0.007 1.035 1.040
7.5 0.968* 0.013 0.963 0.973 1.015* 0.019 1.008 1.022 0.819* 0.006 0.816 0.821
  1. * P < 0.05 as compared with soft tissue = 0 cm