Peripheral Nerve Ultrasonography in Chronic Inflammatory Demyelinating Polyradiculoneuropathy and Multifocal Motor Neuropathy: Correlations with Clinical and Neurophysiological Data
Table 5
Correlations between MRC score and corresponding ultrasonographic data in different muscles/nerves.
Muscle
Ultrasonographic data
Correlation coefficient
value
Flexor carpi radialis (median nerve)
CIDP
0.223
MMN
0.654
Abnormal fascicles
CIDP
0.674
MMN
0.378
Intranerve variability
CIDP
−0.588
0.001
MMN
0.993
First dorsal interosseous (ulnar nerve)
CIDP
0.276
MMN
0.932
Abnormal fascicles
CIDP
0.717
MMN
0.813
Intranerve variability
CIDP
−0.314
0.048
MMN
0.834
Tibialis anterior (peroneal nerve)
CSA popliteal fossa
CIDP
0.145
MMN
0.737
CSA fibular head
CIDP
0.228
MMN
0.954
Abnormal fascicles
CIDP
0.324
MMN
0.194
Gastrocnemius/soleus (tibial nerve)
CSA popliteal fossa
CIDP
0.132
MMN
0.868
CSA ankle
CIDP
0.250
MMN
0.213
Abnormal fascicles
CIDP
0.146
MMN
0.423
CSA: cross-sectional area (mm2). MRC: medical research council.