151751-Najiba-Chargi

65 Diagnostics: measuring skeletal muscle mass of the musculus masseter Table 4. Effect of scattering on masseter left-right deviation. Measurement Scatter score 0 (n=38) Scatter score 1 (n=44) Scatter score 2 (n=31) p-value MCSA Median (IQR) (mm 2 ) [Range] 35.15 (17.78 – 61.12) [0.78 – 117.42] 36.90 (17.93 – 64.65) [0.00 – 158.55] 29.62 (14.57 – 52.52) [3.82 – 184.62] 0.83 MV Median (IQR) (cm 3 ) [Range] 1.22 (0.67 – 2.40) [0.02 – 5.31] 0.62 (0.27 – 1.51) [0.02 – 5.41] 1.48 (0.82 – 2.32) [0.05 - 4.25] <0.001 MT Median (IQR) (mm) [Range] 0.85 (0.5 – 1.88) [0.00 – 8.00] 1.15 (0.5 – 1.78) [0.00 – 6.10] 1.00 (0.4 – 1.9) [0.00 – 3.20] 0.25 HU tot Median (IQR) [Range] 2.65 (1.08 – 4.33) [0.00 – 25.50] 5.30 (2.48 – 8.73) [0.30 – 374.00] 8.40 (4.2 – 17.0) [0.50 – 26.60] <0.001 HU ROI Median (IQR) [Range] 9.50 (4.68 – 18.23) [0.10 – 38.98) 7.60 (4.25 – 16.83) [1.00 – 58.60] 12.90 (4.2 – 19.7) [0.20 – 548] 0.53 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 differences are shown in bold Table 5. Effect of dental status on masseter measurements Measurement Dental score 0 (n=77) Dental score 1 (n=16) Dental score 2 (n=20) p-value MCSA Mean (SD) (mm 2 ) 403.71 (88.68) 380.04 (71.90) 375.30 (73.73) 0.34 MV Mean (SD) (cm 3 ) 19.17 (5.90) 16.68 (4.90) 15.57 (2.84) 0.02 MT Median (IQR) (mm) 12.75 (10.98 – 15.45) 13.05 (10.45 – 15.13) 12.10 (10.41 – 13.78) 0.94 HU tot (IQR ) 115.60 (98.15 – 133.15) 108.55 (96.3 – 116.35) 95.85 (83.78 – 112.08) 0.01 HU ROI Median (IQR) 56.85 (48.85 – 65.83) 56.05 (47.73 – 61.34) 53.03 (47.33 – 60.58) 0.35 Effect of dental status on masseter parameters. Dental score is defined as follows: Dental status was scored as follows: 0 = no missing dentition, 1 = one or more missing teeth, 2 = total absence of dentition. 4