Pain Research and Treatment / 2015 / Article / Tab 3

Research Article

Using Computed Tomography Scans and Patient Demographic Data to Estimate Thoracic Epidural Space Depth

Table 3

Differences (cm) between measurements of loss of resistance (LOR) and skin to epidural space depth determined from computed tomography (SES-CT).

VariableNumberMean ± standard deviationMin.Max. value

 Asian120.51 ± 0.74−0.341.90
 African120.39 ± 0.85−1.101.52
 White1640.85 ± 0.98−2.024.30
 Hispanic300.73 ± 0.68−0.702.20
Epidural placement0.0094
 Midline960.95 ± 0.88−1.693.20
 Paramedian1220.67 ± 0.95−2.024.30
Epidural level<0.0001
 T3–T5651.21 ± 0.86−0.703.40
 T6–T9810.80 ± 0.92−1.504.30
 T10–T12720.40 ± 0.84−2.023.10

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