Linear Craniometric Parameters of Posterior Cranial Fossa | Controls (n = 120) Mean ± SD | Range |
---|---|---|
Twinning line (mm){TwL} | 97.25 ± 3.21 | 91.3–104.1 |
McRae line (mm) | 32.26 ± 1.84 | 28.3–35.9 |
Clivus length (mm) | 41.59 ± 1.99 | 36.8–49.4 |
IOP-O line (mm) | 43.9 ± 2.03 | 36.8–49.6 |
Chamberlain line (mm) | 75.51 ± 3.66 | 67–84 |
Klaus’ index (mm) | 44.57 ± 2.27 | 36.4–49.9 |
Height of posterior fossa (mm){h} | 34.37 ± 1.46 | 32–36.9 |
h/TwL | 0.35 ± 0.02 | – |
Posterior fossa volume (cm3) | 162.52 ± 7.64 | 143.78–175.56 |