Skip to main content

Table 1 BMD and BSI mean values and their SD, LSC%, and reproducibility. Data are presented according to the specific scan mode and to the degree of soft tissue thickness

From: Bone strain index reproducibility and soft tissue thickness influence: a dual x-ray photon absorptiometry phantom study

  FA (0 cm) A (0 cm) HD (0 cm)
BMD BSI BMD BSI BMD BSI
Mean 0.987 2.168 0.987 2.121 1.005 2.077
SD 0.004 0.022 0.003 0.019 0.002 0.013
CoV 0.4% 1.0% 0.3% 0.9% 0.2% 0.6%
LSC 1.0% 2.8% 0.7% 2.5% 0.6% 1.8%
Reproducibility 99.0% 97.2% 99.3% 97.5% 99.4% 98.2%
  FA (1 cm) A (1 cm) HD (1 cm)
  BMD BSI BMD BSI BMD BSI
Mean 0.990 2.146 0.990 2.142 1.003 2.084
SD 0.003 0.018 0.004 0.023 0.003 0.012
CoV 0.3% 0.8% 0.4% 1.1% 0.3% 0.6%
LSC 0.9% 2.3% 1.2% 3.0% 0.7% 1.7%
Reproducibility 99.1% 97.7% 98.8% 97.0% 99.3% 98.3%
  FA (3 cm) A (3 cm) HD (3 cm)
  BMD BSI BMD BSI BMD BSI
Mean 0.980 2.178 0.981 2.159 1.001 2.081
SD 0.005 0.029 0.004 0.017 0.004 0.022
CoV 0.5% 1.3% 0.4% 0.8% 0.4% 1.1%
LSC 1.3% 3.7% 1.1% 2.2% 1.1% 3.0%
Reproducibility 98.7% 96.3% 98.9% 97.8% 98.9% 97.0%
  FA (6 cm) A (6 cm) HD (6 cm)
  BMD BSI BMD BSI BMD BSI
Mean 0.994 2.134 0.995 2.099 1.020 2.045
SD 0.005 0.025 0.005 0.023 0.006 0.029
CoV 0.5% 1.2% 0.5% 1.1% 0.6% 1.4%
LSC 1.4% 3.3% 1.3% 3.0% 1.6% 3.9%
Reproducibility 98.6% 96.7% 98.7% 97.0% 98.4% 96.1%
  1. BMD Bone mineral density, BSI Bone strain index, FA Fast array, A Array, HD High definition, CoV Coefficient of variation, SD Standard deviation, LSCLeast significant change percentage, 0 cm Absence of interposed soft tissue