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Fig. 3 | European Radiology Experimental

Fig. 3

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

Fig. 3

Box-and-whisker plots showing six bone microarchitectural parameters at seven different spatial resolution groups in tiger vertebra (T1 = conventional-resolution computed tomography (CT), matrix 512 × 512, slice thickness 0.5 mm; T2–T6 = ultra-high-resolution CT; T2, matrix 512 × 512, slice thickness 0.5 mm; T3, matrix 512 × 512, slice thickness 0.25 mm; T4, matrix 1024 × 1024, slice thickness 0.5 mm; T5, matrix 1024 × 1024, slice thickness 0.25 mm; T6 = matrix 2048 × 2048, slice thickness 0.25 mm; T7 = micro-CT, matrix 2048 × 2048, slice thickness 0.06) mm. T1–T7 Tiger vertebra groups 1–7, vBMD × 2048 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. Open circles indicate outliers. Asterisk (*) and double asterisk (**) indicate significant differences from the conventional-resolution CT group (T1) or micro-CT group (T7), respectively (p ≤ 0.047). Tukey or Dunnett T3 tests were used, as appropriate

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