Table 2. Lesion and brain volume measures (mean ± SD) in the whole group of AA and CA patients and in the subgroup with available brain volume measures.

All Patients (n = 194)	AA patients	CA patients	p value
CELs (n)	0.64±2.62	0.13±0.51	0.4
T2 LV (mL)	13.40±17.61	7.04±9.01	0.001
T1 LV (mL)	1.31±2.23	0.53±0.97	0.0003
T1/T2 LV	0.10±0.10	0.10±0.19	0.07

CELs  =  contrast-enhancing lesions; LV  =  lesion volume; NBV  =  normalized brain volume; NWMV  =  normalized white matter volume; NGMV  =  normalized gray matter volume.