Linear Craniometric Parameters of Posterior Cranial Fossa | Female (n = 61) Mean ± SD | Male (n = 59) Mean ± SD | Total Mean ± SD | p value |
---|---|---|---|---|
Twinning line (mm){TwL} | 95.89 ± 3.3 | 98.65 ± 2.44 | 97.25 ± 3.21 | < .0001a |
McRae’s line (mm) | 31.57 ± 1.83 | 32.97 ± 1.58 | 32.26 ± 1.84 | < .0001a |
Clivus length (mm) | 40.67 ± 1.49 | 42.53 ± 2.02 | 41.59 ± 1.99 | < .0001a |
IOP-O line (mm) | 43.32 ± 1.8 | 44.5 ± 2.1 | 43.9 ± 2.03 | 0.001a |
Chamberlain line (mm) | 75.42 ± 3.62 | 75.61 ± 3.74 | 75.51 ± 3.66 | 0.785a |
Klaus’ index (mm) | 43.63 ± 2.05 | 45.54 ± 2.08 | 44.57 ± 2.27 | < .0001a |
Height of posterior fossa (mm){h} | 33.57 ± 1.02 | 35.21 ± 1.38 | 34.37 ± 1.46 | < .0001a |
Height of supratentorial region (mm){H} | 91.64 ± 2.03 | 90.83 ± 1.84 | 91.24 ± 1.97 | 0.024a |
h/TwL | 0.35 ± 0.02 | 0.36 ± 0.02 | 0.35 ± 0.02 | 0.028a |
Posterior fossa volume (cm3) | 161.53 ± 6.82 | 163.54 ± 8.35 | 162.52 ± 7.64 | 0.151a |