Table 4 Analysis of DSEPS and SSEPs segmental abnormality rate
Stimulation location | Number | Percentage (%) | Waveform | Latency | Amplitude | Total | Abnormal rate (%) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L | R | Abnormal rate (%) | L | R | Abnormal rate (%) | L | R | Abnormal rate (%) | ||||||
DESP | T2 | 36 | 58.1 | 5 | 3 | 22.2 | 5 | 6 | 30.6 | 2 | 3 | 13.9 | ||
T4 | 36 | 58.1 | 12 | 12 | 66.7 | 6 | 7 | 36.1 | 4 | 3 | 19.4 | |||
T6 | 47 | 75.8 | 17 | 15 | 68.1 | 5 | 7 | 25.5 | 6 | 3 | 19.1 | |||
T8 | 47 | 75.8 | 9 | 12 | 44.7 | 14 | 16 | 63.8 | 5 | 8 | 27.6 | |||
T10 | 55 | 88.7 | 17 | 13 | 54.5 | 10 | 13 | 41.8 | 4 | 8 | 21.8 | |||
T12 | 55 | 88.7 | 16 | 12 | 50.9 | 10 | 15 | 45.5 | 5 | 8 | 23.6 | |||
L2 | 61 | 98.4 | 7 | 8 | 24.6 | 9 | 6 | 24.6 | 6 | 3 | 14.7 | |||
L3 | 61 | 98.4 | 13 | 10 | 37.7 | 11 | 14 | 40.9 | 3 | 7 | 16.4 | |||
L4 | 62 | 100 | 5 | 4 | 14.5 | 10 | 17 | 43.5 | 8 | 6 | 22.6 | |||
L5 | 62 | 100 | 7 | 8 | 24.2 | 9 | 10 | 30.6 | 4 | 4 | 12.9 | |||
S1 | 62 | 100 | 5 | 4 | 14.5 | 6 | 5 | 17.7 | 5 | 4 | 14.5 | |||
Total | 584 | 113 | 101 | 36.6 | 95 | 117 | 36.3 | 52 | 93 | 24.8 | 571 | 97.8 | ||
SSEP | Tibial nerve (TIB) | 62 | 100 | 1 | 1 | 3.2 | 6 | 8 | 22.5 | 4 | 5 | 14.5 | 25 | 40.3 |