Table 5. Effect of scattering on masseter left-right deviation.
| Measurement | Scatter score 0 (n=32) | Scatter score 1 (n=39) | Scatter score 2 (n=28) | P |
|---|---|---|---|---|
| MCSA (mm2) | 37.78 (17.07–37.78) [0.78–117.42] | 37.32 (17.76–65.54) [0.00–158.55] | 29.91 (15.00–54.79) [3.82–184.62] | NS |
| MV (cm3) | 1.45 (0.83–2.42) [0.02–5.31] | 0.56 (0.24–1.73) [0.02–5.41] | 1.51 (0.83–2.30) [0.05–4.25] | 0.011 |
| MT (mm) | 0.85 (0.50–2.03) [0.00–8.00] | 1.20 (0.50–2.00) [0.00–6.10] | 1.00 (0.43–1.88) [0.10–3.20] | NS |
| HUtot | 2.85 (1.10–4.25) [0.0–25.50] | 5.40 (2.40–8.80) [0.30–374.00] | 8.85 (4.33–16.48) [0.50–26.60] | 0.001 |
| HUROI | 8.65 (4.28–15.75) [0.10–38.98] | 7.30 (4.40–17.00) [1.00–58.60] | 13.00 (3.53–20.38) [0.30–548.90] | NS |
Effect of scattering on deviations in masseter assessment. Scatter score is defined as follows: 0 = no scattering present, 1 = slight scattering present, 2 = significant scattering present. Statistically significant relationships are highlighted in bold. P values >0.05 are shown as non-significant (NS). All variables are shown as median (IQR) [range]. MCSA, masseter cross sectional area; MV, masseter volume; MT, masseter maximum thickness; HUtot, the total HU-value of the measured tissue; HUROI, the HU value of a 1 cm diameter circle in the measured tissue.