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Table 4 Summary of results for Metacarpal Shaft (MS) 2 & 3 regions of interest (n = 10)

From: A customized protocol to assess bone quality in the metacarpal head, metacarpal shaft and distal radius: a high resolution peripheral quantitative computed tomography precision study

Variables Mean (SD) ICC (0.000-1.000) Mean coefficient of variation (CV%) Root mean square CV (RMSCV%) Least significant change% (LSC%95)
MS3 MS2 MS3 MS2 MS3 MS2 MS3 MS2 MS3 MS2
Density (Apparent) Full bone (mgHA/cm3) vBMDfull 1181 (207) 1230 (180) 0.994 0.981 0.88 1.8 1.2 2.9 3.3 7.9
Cortical (mgHA/cm3) vBMDcort 1482 (173) 1492 (172) 0.993 0.996 0.83 0.49 1.0 0.80 2.8 2.2
Density (Material) Cortical (mgHA/cm3) vTMDcort 1568 (194) 1564 (199) 0.996 0.997 0.57 0.66 0.72 1.0 2.0 2.8
Cortical bone Thickness (mm) CtTh 1.8 (0.37) 2.0 (0.34) 0.989 0.989 1.5 1.7 1.9 1.9 5.3 5.1
Porosity (%) CtPo 0.29 (0.31) 0.31 (0.22) 0.790 0.949 16.7 29.0 18.8 36.0 52.2 99.7
Volume (mm3) BVcort 374 (101) 412 (109) 0.998 0.998 0.97 0.93 1.3 1.1 3.6 3.1
Section modulus-major (mm3) SMcort 55 (20) 61 (23) 0.998 0.997 1.2 1.4 1.4 1.7 3.9 4.9
Polar moment of inertia (mm4) pMOIcort 476 (234) 535 (256) 0.999 0.998 0.87 1.9 1 2.0 2.8 5.6
Full bone Volume (mm3) BVfull 475 (120) 499 (126) 0.997 0.997 0.77 0.97 1.0 1.1 2.8 3.1
Volume fraction (%) BV/TVfull 76 (9) 80 (7) 0.991 0.976 0.71 1.2 0.82 1.5 2.3 4.2
Marrow space diameter (mm) MSdia 2.6 (0.87) 2.6 (0.73) 0.961 0.979 5.7 3.9 7.4 4.9 20.5 13.6
Section modulus – major (mm3) SMfull 52 (20) 58 (23) 0.997 0.998 1.4 1.1 1.7 1.5 4.6 4.0
Polar moment of inertia (mm4) pMOIfull 444 (232) 498 (254) 0.998 0.998 1.3 1.7 1.6 1.8 4.3 5.1