Table 3.
Differences in MRI performance between the DPHCC, NCPHCC and ICC groups
| Variables | DPHCC(a) (n = 27) | NDPHCC(b) (n = 113) | ICC (c) (n = 68) |
P value (a vs b) |
P value (a vs c) |
|---|---|---|---|---|---|
| Tumor | 0.570 | 0.071 | |||
| Single | 19(70.4%) | 73(64.6%) | 34(50.0%) | ||
| multiple | 8(29.6%) | 40(35.4%) | 34(50.0%) | ||
| The larger tumor length (cm) | 4.62 ± 3.02 | 4.76 ± 3.49 | 6.69 ± 3.54 | 0.914 | 0.006 |
| Tumor margin | 0.000 | 0.000 | |||
| smooth | 8(29.6%) | 92(81.4%) | 1(1.5%) | ||
| non-smooth | 19(70.4%) | 21(18.6%) | 67(98.5%) | ||
| Tumor capsule | 0.000 | 0.073 | |||
| present | 8(29.6%) | 82(72.6%) | 8(11.8%) | ||
| absent | 19(70.4%) | 31(27.4%) | 60(88.2%) | ||
| Hemorrhage | 0.243 | 1.000 | |||
| present | 1(3.7%) | 16(14.2%) | 3(4.4%) | ||
| absent | 26(96.3%) | 97(85.8%) | 65(95.6%) | ||
| Necrosis or cystic degeneration | 0.787 | 0.311 | |||
| present | 12(44.4%) | 47(41.6%) | 21(30.9%) | ||
| absent | 15(55.6%) | 66(58.4%) | 47(69.1%) | ||
| Intratumor fat | 0.000 | 0.166 | |||
| present | 2 (7.4%) | 63(55.8%) | 15(22.1%) | ||
| absent | 25(92.6%) | 50(44.2%) | 53(77.9%) | ||
| Contrast enhancement pattern | 0.000 | 0.001 | |||
| Fast in and fast out | 8(29.6%) | 107(94.7%) | 2(2.9%) | ||
| Persistent | 19(70.4%) | 6(5.3%) | 66(97.1%) | ||
| Intratumor progressive small nodular enhancement | 0.000 | 0.016 | |||
| present | 20(74.1%) | 5(4.4%) | 64(94.1%) | ||
| absent | 7(25.9%) | 108(95.6%) | 4(5.9%) | ||
| Arterial phase rim enhancement | 0.000 | 0.024 | |||
| present | 20(74.1%) | 9(8.0%) | 33(48.5%) | ||
| absent | 7(25.9%) | 104(92.0%) | 35(51.5%) | ||
| Slightly higher signal ring on T2WI | 0.104 | 0.092 | |||
| present | 6(22.2%) | 10(8.8%) | 5(7.4%) | ||
| absent | 21(77.8%) | 103(91.2%) | 63(92.6%) | ||
| Tumor to erector spinae muscle signal ratio on T2WI | 3.54 ± 1.76 | 2.22 ± 1.20 | 4.03 ± 2.45 | 0.000 | 0.070 |
| Target sign on DWI | 0.000 | 0.329 | |||
| present | 21(77.8%) | 7(6.2%) | 46(67.6%) | ||
| absent | 6(22.2%) | 106(93.8%) | 22(32.4%) |