Table 3

MRI abnormality (volume loss and/or lesions) in ROIs significantly associated with poorer clinical function

DomainROITotal GM volumeGM lesion volume
BSEp ValueAdj R2BSEp ValueAdj R2
EDSSCerebellum−0.0530.0220.0180.2032.5620.9600.0090.216
Postcentral gyrus0.2940.0930.0020.2425.4412.3260.0220.199
Executive functionCerebellum0.0420.0150.0060.067−1.5670.6650.0210.038
Memory functionCerebellum0.0260.0110.0200.0661.2050.4830.0150.072
Postcentral gyrus−2.6951.1640.0230.062
z25TWTCerebellum0.0140.0060.0200.156−0.5430.2440.0290.148
Postcentral gyrus0.0620.0240.0140.1641.5740.5740.0080.176
zPASATCerebellum0.0470.012<0.0010.150
Insula0.3360.0990.0010.122
Medial temporal lobe0.2860.0940.0030.098
Postcentral gyrus−2.8421.3990.0320.076
Prefrontal lobe0.0260.0110.0250.052
z9HPTCerebellum0.0230.0090.0160.100
  • If both volume loss and increased lesion burden is associated, the strongest contributor is presented in bold.

  • EDSS, Expanded Disability Status Scale; GM, grey matter; z9HPT, 9-hole Peg Test; 25TWT, 25-foot Timed Walk Test; zPASAT, Paced Auditory Serial Addition Test, ROI, region of interest.