Table 3

Measurements of the posterior cranial fossa in patients with Chiari-like symptomatology and controls

Measurements depicted in Fig. 2
Chiari-like Group (N = 22)
Control Group (N = 25)
P

Clivus (d+e)
32.95 ± 8.7
43.00 ± 6.6
0.00005
Supraocciput (IOP to OP)
40.50 ± 5.9
41.80 ± 6.2
0.471
Basisphenoid (d)
18.63 ± 5.3
23.64 ± 4.9
0.002
Basiocciput (e)
14.00 ± 4.3
19.36 ± 4.7
0.0003
Hindbrain (b)
47.05 ± 4.1
46.40 ± 4.4
0.609
Cerebellum (c)
47.36 ± 7.9
47.04 ± 4.8
0.863
McRae's (B to OP)
43.55 ± 4.9
42.52 ± 5.9
0.524
Twining's (DS to IOP)
84.55 ± 7.8
87.32 ± 6.6
0.194
Tentorial Angle (a)
41.27 ± 6.5
34.84 ± 7.2
0.003

Values are means ± standard deviations

Linear measurements in mm and angular

measurements in degrees

Sekula et al. Cerebrospinal Fluid Research 2005 2:11   doi:10.1186/1743-8454-2-11