From: CT analysis of thoracolumbar body composition for estimating whole-body composition
Multi-slice averaging in the waist | Single-slice L2 lower endplate | Single-slice L3 upper endplate | Multi-slice averaging in T12–L1 | Single-slice T12 lower endplate | Single-slice L1 upper endplate | |
---|---|---|---|---|---|---|
Muscle | ||||||
R2 | 0.94 | 0.92 | 0.92 | 0.91 | 0.90 | 0.92 |
RMSE (L) | 1.34 | 1.51 | 1.53 | 1.57 | 1.67 | 1.46 |
MAE (L) | 1.03 | 1.07 | 1.09 | 1.10 | 1.20 | 1.05 |
Calibration-in-the-large (L) | 0.11 (− 0.61, 0.82) | 0.09 (− 0.70, 0.89) | 0.15 (− 0.66, 0.96) | − 0.02 (− 0.86, 0.83) | 0.02 (− 0.89, 0.92) | − 0.10 (− 0.89, 0.69) |
Calibration slope | 1.00 (0.96, 1.03) | 1.00 (0.96, 1.04) | 0.99 (0.96, 1.03) | 1.00 (0.96, 1.04) | 1.00 (0.96, 1.05) | 1.01 (0.97, 1.05) |
Visceral fat | ||||||
R2 | 0.96 | 0.94 | 0.94 | 0.92 | 0.87 | 0.91 |
RMSE (L) | 0.38 | 0.45 | 0.42 | 0.49 | 0.65 | 0.54 |
MAE (L) | 0.26 | 0.32 | 0.30 | 0.34 | 0.44 | 0.38 |
Calibration-in-the-large (L) | − 0.01 (− 0.11, 0.08) | − 0.10 (− 0.21, 0.02) | − 0.08 (− 0.19, 0.03) | − 0.03 (− 0.16, 0.09) | 0.06 (− 0.11, 0.24) | − 0.08 (− 0.22, 0.07) |
Calibration slope | 1.01 (0.98, 1.04) | 1.05 (1.01, 1.09) | 1.04 (1.01, 1.08) | 1.03 (0.99, 1.06) | 1.00 (0.95, 1.05) | 1.05 (1.01, 1.09) |
Subcutaneous fat | ||||||
R2 | 0.89 | 0.87 | 0.86 | 0.90 | 0.89 | 0.89 |
RMSE (L) | 1.97 | 2.07 | 2.15 | 1.87 | 1.94 | 1.96 |
MAE (L) | 1.45 | 1.54 | 1.60 | 1.42 | 1.47 | 1.49 |
Calibration-in-the-large (L) | 0.86 (0.09, 1.62) | 0.89 (0.09, 1.70) | 0.99 (0.15, 1.83) | 0.51 (− 0.23, 1.25) | 0.55 (− 0.22, 1.32) | 0.54 (− 0.24, 1.32) |
Calibration slope | 0.95 (0.91, 1.00) | 0.95 (0.90, 1.00) | 0.94 (0.90, 0.99) | 0.97 (0.93, 1.02) | 0.97 (0.93, 1.02) | 0.97 (0.93, 1.02) |