Table 2. Comparison of CT features between advanced MGC and NMGC.
| Variables of CT features | MGC | NMGC | P value |
|---|---|---|---|
| N (%) or mean±SD | N (%) or mean±SD | ||
| Wall thickness, cm | 1.75±0.52 | 1.35±0.37 | <0.001 |
| Upper | 1.68±0.36 | 1.38±0.39 | 0.072 |
| Middle | 1.50±0.51 | 1.36±0.41 | 0.535 |
| Lower | 1.84±0.45 | 1.30±0.35 | <0.001 |
| Whole | 3.10 | 1.93±0.05 | 0.033 |
| Attenuation value of the inner layer, HU | |||
| Unenhanced phase | 34.93±6.75 | 40.77±7.28 | <0.001 |
| Arterial phase(ΔCT) | 17.70±14.90 | 23.19±14.27 | 0.080 |
| Portal venous phase(ΔCT) | 54.57±18.27 | 47.19±14.98 | 0.034 |
| Equilibrium phase(ΔCT) | 45.06±18.26 | 41.58±16.25 | 0.487 |
| Attenuation value of the middle or outer layer, HU | |||
| Unenhanced phase | 25.97±5.88 | 33.26±8.44 | <0.001 |
| Arterial phase(ΔCT) | 7.00±6.10 | 15.92±11.31 | <0.001 |
| Portal venous phase(ΔCT) | 19.07±10.05 | 33.09±16.13 | <0.001 |
| Equilibrium phase(ΔCT) | 18.72±9.50 | 30.55±15.96 | 0.002 |
| Enhancement pattern | <0.001 | ||
| Homogeneous | 2(6.7) | 41(52.6) | |
| Heterogeneous | 3(10.0) | 27(34.6) | |
| Layered | 25(83.3) | 10(12.8) | |
| Degree of enhancement | 1.000 | ||
| mild enhancement | 4(13.3) | 10(12.8) | |
| Obvious enhancement | 26(86.7) | 68(87.2) | |
| Calcification | <0.001 | ||
| Positive | 10(33.3) | 1(1.3) | |
| Negative | 20(66.7) | 77(98.7) | |
| Surface dimple or ulcer | 1.000 | ||
| Positive | 26(86.7) | 66(84.6) | |
| Negative | 4(13.3) | 12(15.4) |