Retrospective Study
Copyright ©The Author(s) 2021.
World J Gastroenterol. May 7, 2021; 27(17): 2015-2024
Published online May 7, 2021. doi: 10.3748/wjg.v27.i17.2015
Table 1 Clinical and imaging features of patients in the training group and verification group
Feature
Training group (n = 124)
Verification group (n = 61)
Z value/χ2 value
P value
Age (yr), median (quartile)54 (47; 63)52 (46; 62)-0.9000.368
Gender/cases
Male102530.3490.555
Female228
Hepatitis B104561.5750.210
Liver cirrhosis84430.0440.833
AFP (ng/mL)
≤ 2073301.1880.276
> 205131
MVI
Negative82400.0001.000
Positive4221
Tumor size (mm), median (quartile)36 (28; 44)34 (27.5; 41)-0.7460.456
TTPVI
Negative56250.1450.703
Positive6836
RVI
Negative93401.3620.243
Positive3121
Rad-score, median (quartile)-0.669 (-0.831; -0.546)-0.640 (-0.780; -0.494)-0.9170.359
Table 2 Comparison of predictive performance between radiomics tags and image features

Training group
Verification group
AUC (95%CI)
P value
AUC (95%CI)
P value
Rad-score0.724 (0.584-0.863)0.745 (0.655-0.834)
TTPVI0.590 (0.500-0.679)0.522 (0.393-0.651)
RVI0.545 (0.462-0.628)0.528 (0.401-0.655)
Rad vs TTPVI0.0180.043
Rad vs RVI0.0020.048