Skip to main content

Table 3 Modulus and phase of tissues in second group at different frequencies (mean ± SD)

From: Tissue discrimination by bioelectrical impedance during PLL resection in anterior decompression surgery for treatment of cervical spondylotic myelopathy

Tissues Frequency (kHz)
200 400 600 800 1000 2000 3000
PLL, modulus, Ω 1605.88 ± 100.73 1515.69 ± 101.56 1463.82 ± 108.16 1412.2 ± 118.24 1344.05 ± 106.08 932.2 ± 44.16 688.25 ± 28.12
PLL, phase, ° − 17.1 ± 0.46 − 21.6 ± 0.44 − 26.81 ± 0.42 − 31.83 ± 0.43 − 36.75 ± 0.45 − 55.53 ± 0.47 − 64.95 ± 0.42
DM, modulus, Ω 1002.52 ± 67.46 941.9 ± 52 909.5 ± 47.42 892.12 ± 55.52 873.33 ± 65.33 738.49 ± 49.06 604.13 ± 29.8
DM, phase, ° − 12.92 ± 0.84 − 15.15 ± 0.94 − 18.01 ± 1.01 − 21.33 ± 1.3 − 25.56 ± 1.9 − 44.47 ± 2.93 − 57.2 ± 2.42
SC, modulus, Ω 2218.13 ± 111.28 2095.76 ± 124.04 1949.27 ± 115.22 1785.06 ± 68.81 1598.92 ± 51.92 947.54 ± 36.92 681.31 ± 31.54
SC, phase, ° − 14.23 ± 0.69 − 23.57 ± 2.01 − 33.98 ± 3.81 − 42.73 ± 3.45 − 51.3 ± 6.62 − 67.56 ± 1.51 − 75.12 ± 1.39
NR, modulus, Ω 931.24 ± 29.83 892.47 ± 31.69 872.75 ± 28.52 855.47 ± 34.42 814.67 ± 24.62 766.68 ± 30.79 645.17 ± 19.78
NR, phase, ° − 10.82 ± 0.82 − 12.26 ± 0.98 − 14.23 ± 0.92 − 16.86 ± 0.96 − 22.12 ± 0.97 − 41.2 ± 1.66 − 57.09 ± 1.79
  1. SD standard deviation, PLL posterior longitudinal ligament, DM dura mater, SC spinal cord, NR nerve root