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Table 1 Measurement of mean CT value of vertebrae

From: The accuracy and effectiveness of automatic pedicle screw trajectory planning based on computer tomography values: an in vitro osteoporosis model study

 

CT value (Hu)

T’ value

Decalcification group (n = 5)

 Before decalcification a

2767.15 ± 27.08b

−0.03 ± 1.03b

 After decalcification b

2688.80 ± 7.67acd

− 3.03 ± 0.29acd

Control group (n = 5)c

2768.59 ± 28.35b

0.03 ± 1.08b

All samples (n = 10)d

2767.87 ± 26.15b

0.00 ± 1.00b

  1. arepresents the P < 0.05 compared with the decalcification group before decalcification, brepresents the P < 0.05 compared with the decalcification group after decalcification, crepresents the P < 0.05 compared with the control group, and drepresents the P < 0.05 compared with all samples without decalcification