Table 3.

Mean (SD) hippocampal volumes by manual segmentation (MS) and by computer automated segmentation (CAS) methodologies, by test results. P-values represent t-tests or Wilcoxon rank sum test or ANOVA.

Test (N for normal and abnormal test results)	Mean (SD) hippocampal values	Mean Hippocampal volume MS P-values	Mean Hippocampal volume CAS P=values
Bi-thermal caloric tests		P=0.67	P=0.66
(Normal N=8, abnormal N=3)
Normal MS	1.22 (0.68)
Abnormal MS	1.43 (0.82)
Normal CAS	1.27 (0.47)
	1.14 (0.13)
Dix-Hallpike maneuvers		P=0.028	P=0.097
(Normal N=3, abnormal classical N=4, abnormal nonclassical N=4)
Normal MS	1.35 (1.04)
Abnormal classical MS	1.12 (0.50)
Abnormal nonclassical MS	1.39 (0.73)
Normal CAS	1.16 (0.36)
Abnormal classical CAS	1.31 (0.42)
	1.21 (0.52)
Abnormal nonclassical segmented
cVEMP		P=0.86	P=0.90
(Normal N=4, abnormal N=7)
Normal MS	1.85 (0.67)
Abnormal MS	0.95 (0.47)
Normal CAS	0.96 (0.22)
Abnormal CAS	1.39 (0.42)
Spontaneous nystagmus		P=0.78	P=0.81
(Normal scores, N=2; abnormal scores, N=9)
Normal MS	1.15 (0.62)
Abnormal MS	1.31 (0.73)
Normal CAS	1.17 (0.01)
Abnormal CAS	1.25 (0.45)
Tandem walking		P=0.98	P=0.55
(Normal scores, N=7; abnormal scores, N=4)
Normal MS	1.29 (0.64)
Abnormal MS	1.27 (0.87)
Normal CAS	1.29 (0.47)
Abnormal CAS	1.13 (0.30)
CTSIB, head still		P=0.98	P=0.93
(Normal scores, N=4; abnormal scores, N=7)
Normal CSTIB MS	1.27 (0.42)
Abnormal CTSIB MS	1.28 (0.66)
Normal CTSIB CAS	1.25 (0.52)
Abnormal CTSIB CAS	1.22 (0.37)
CTSIB head yaw		P=0.62	P=0.84
(Normal scores, N=3; abnormal scores, N=8)
Normal MS	1.46 (0.91)
Abnormal MS	1.21 (0.64)
Normal CAS	1.28 (0.64)
Abnormal CAS	1.22 (0.34)
CTSIB head pitch		P=0.62	P=0.84
Normal scores, N=3; abnormal scores, N=8)
Normal MS	1.46 (0.91)
Abnormal MS	1.21 (0.64)
Normal CAS	1.28 (0.64)
Abnormal CAS	1.22 (0.34)