Table 2 Comparisons between negative and positive lymph nodes for 12 CT measurements
From: Computed tomography Hounsfield units can predict breast cancer metastasis to axillary lymph nodes
Lymph node metastasis | |||
|---|---|---|---|
Factors (mean ± SD) | Negative (n = 82) | Positive (n = 49) | P |
Mean NC-CT HU of lymph node | 7.83 ± 22.31 | 29.17 ± 16.37 | < 0.05 |
Maximum NC-CT HU of lymph node | 34.28 ± 23.58 | 60.06 ± 17.52 | < 0.05 |
Mean CE-CT HU of lymph node | 52.45 ± 27.29 | 78.09 ± 22.49 | < 0.05 |
Maximum CE-CT HU of lymph node | 86.95 ± 27.58 | 118.63 ± 23.14 | < 0.05 |
Mean NC-CT HU of primary tumor | 36.09 ± 18.88 | 37.28 ± 16.58 | 0.89 |
Maximum NC-CT HU of primary tumor | 69.30 ± 30.65 | 78.17 ± 18.55 | 0.11 |
Mean CE-CT HU of primary tumor | 91.92 ± 28.36 | 89.03 ± 31.45 | 0.39 |
Maximum CE-CT HU of primary tumor | 135.81 ± 31.27 | 148.88 ± 25.32 | 0.88 |
Long-axis diameter of lymph node (mm) | 6.05 ± 2.32 | 10.37 ± 4.75 | < 0.05 |
Short-axis diameter of lymph node (mm) | 4.42 ± 1.71 | 7.35 ± 3.39 | < 0.05 |
Long-axis diameter of primary tumor (mm) | 18.71 ± 10.14 | 40.54 ± 37.94 | < 0.05 |
Short-axis diameter of primary tumor (mm) | 12.99 ± 7.11 | 25.44 ± 33.37 | < 0.05 |