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Table 3 Comparison of tiger vertebral microarchitectural parameters obtained with different CT scanners, matrix numbers, and slice thicknesses ex vivo

From: Bone microarchitectural analysis using ultra-high-resolution CT in tiger vertebra and human tibia

 Group
T1T2T3T4T5T6T7
CT scannerCRCTUHRCTUHRCTUHRCTUHRCTUHRCTMicro-CT
Matrix number5125125121024102420482048
Slice thickness (mm)0.50.50.250.50.250.250.06
vBMD (mg/cm3)20.8 ± 8.637.7 ± 10.942.9 ± 12.546.2 ± 12.251.4 ± 12.463.5 ± 13.7199.6 ± 25.5
BV/TV (%)13.8 ± 6.220.2 ± 5.723.1 ± 5.724.5 ± 5.726.5 ± 5.229.5 ± 4.979.2 ± 6.7
Tb.Th (μm)312.8 ± 58.8208.1 ± 28.8217.1 ± 21.7196.3 ± 27.2204.6 ± 22.3200 ± 19.9420 ± 56.6
Tb.N (l/mm)0.47 ± 0.260.98 ± 0.271.06 ± 0.221.26 ± 0.31.3 ± 0.221.48 ± 0.231.91 ± 0.24
Tb.Sp (μm)2671 ± 2040892 ± 380768 ± 253637 ± 210586 ± 146489 ± 109111 ± 40
ConnD (l/mm3)0.02 ± 0.010.16 ± 0.070.31 ± 0.140.29 ± 0.140.52 ± 0.170.74 ± 0.171.36 ± 0.46
  1. Data are means ± standard deviations
  2. T1–T7 Tiger vertebra groups 1–7, CRCT Conventional resolution computed tomography, UHRCT Ultra-high-resolution computed tomography, vBMD Volumetric bone mineral density, BV/TV Trabecular bone volume fraction, Tb.Th Trabecular thickness, Tb.N Trabecular number, Tb.Sp Trabecular separation, ConnD Connectivity density