Table 2 Analysis of the CT features of 347 patients with colorectal cancer [median (Q1, Q3) or no. (%)]
CT features | MSI(n = 71) | MSS(n = 276) | P | Training(n = 243) | Testing(n = 104) | P |
|---|---|---|---|---|---|---|
cT-stage, n(%) | Â | Â | 0.106 | Â | Â | 0.096 |
T1 | 5(7.04) | 7(2.54) | Â | 7(2.88) | 5(4.80) | Â |
T2 | 4(5.63) | 33(11.96) | Â | 32(13.17) | 5(4.80) | Â |
T3 | 58(81.70) | 213(77.17) | Â | 187(76.95) | 84(80.78) | Â |
T4 | 4(5.63) | 23(8.33) | Â | 17(7.00) | 10(9.62) | Â |
cN-stage, n(%) | Â | Â | 0.279 | Â | Â | 0.793 |
N0 | 38(53.52) | 127(46.01) | Â | 118(48.56) | 47(45.19) | Â |
N1 | 17(23.94) | 60(21.74) | Â | 54(22.22) | 23(22.12) | Â |
N2 | 16(22.54) | 89(32.25) | Â | 71(29.22) | 34(32.69) | Â |
Tumour location, n(%) |  |  | < 0.001 |  |  | 0.817 |
Right colon | 37(52.11) | 80(28.99) | Â | 81(33.33) | 36(34.62) | Â |
Left colon or Rectum | 34(47.89) | 196(71.01) | Â | 162(66.67) | 68(65.38) | Â |
Tumour length(cm) | 46.66(35.27,65.88) | 48.06(36.40,62.69) | 0.535 | 48.10(36.78,62.65) | 46.33(35.27,63.67) | 0.932 |
Maximum tumour diameter(cm) | 18.10(15.08,26.24) | 17.69(13.61,24.85) | 0.142 | 17.54(13.67,24.96) | 18.38(14.47,25.73) | 0.420 |
Enhancement, n(%) |  |  | < 0.001 |  |  | 0.118 |
Homogeneous | 40(56.34) | 238(86.23) | Â | 200(82.30) | 78(75.00) | Â |
Heterogeneous | 31(43.66) | 38(13.77) | Â | 43(17.70) | 26(25.00) | Â |
PCR | 0.89(0.82,0.96) | 0.92(0.84,1.02) | 0.009 | 0.91(0.83,1.02) | 0.92(0.84,1.00) | 0.630 |
ACR | 0.21(0.16,0.24) | 0.23(0.21,0.26) | < 0.001 | 0.23(0.20,0.26) | 0.22(0.20,0.25) | 0.143 |
VCR | 0.46(0.38,0.50) | 0.51(0.47,0.56) | < 0.001 | 0.50(0.45,0.55) | 0.51(0.45,0.56) | 0.883 |
DCR | 0.64(0.58,0.69) | 0.68(0.63,0.73) | < 0.001 | 0.67(0.63,0.72) | 0.68(0.60,0.73) | 0.854 |