From: A patient with McLeod syndrome showing involvement of the central sensorimotor tracts for the legs
MEPs from FDI muscle | MEPs from TA muscle | ||||
---|---|---|---|---|---|
Stimulation site | Latency (ms) | Normal limit (ms) | Stimulation site | Latency (ms) | Normal limit (ms) |
(1) Cortex | 21.7 | 22.6 | (1) Cortex | 32.6 | 29.3 |
(2) Brainstem | 18.8 | 18.8 | (2) Brainstem | 30.1 | 25.4 |
(3) Cervical root | 15.2 | 15.2 | (3) L1 root | 16.7 | 16.8 |
 | Conduction time (ms) |  | (4) L5 root | 13.3 | 13.3 |
CMCT [(1)–(3)] | 6.5 | 7.7 |  | Conduction time (ms) |  |
 |  |  | CMCT [(1)–(4)] | 19.3 | 17.0 |
 |  |  | CCCT [(1)–(3)] | 15.9 | 14.7 |
 |  |  | CECT [(3)–(4)] | 3.4 | 4.4 |