Table 4.
Selected number of radiomic features used for each risk factor and their discriminative accuracy, and results obtained based on conventional imaging indices and size information.
| Risk factor | Radiomics features | Clinical indices | ||||||
|---|---|---|---|---|---|---|---|---|
| # | S/F/T | LV/RV/MYO | ED/ES | ACC/AUC | # | LV/RV | ACC/AUC | |
| High cholesterol | 6 | 2/1/3 | 2/2/2 | 4/2 | 0.682/0.712 | 2 | 1/1 | 0.626/0.645 |
| Diabetes | 11 | 5/3/3 | 5/2/4 | 6/5 | 0.782/0.803 | 4 | 3/1 | 0.681/0.704 |
| Hypertension | 5 | 2/0/3 | 2/2/1 | 3/2 | 0.682/0.721 | 2 | 1/1 | 0.646/0.690 |
| Current smokers | 5 | 1/1/3 | 1/2/2 | 5/0 | 0.675/0.675 | 3 | 2/1 | 0.628/0.648 |
| Previous smokers | 6 | 1/1/4 | 2/2/2 | 3/3 | 0.612/0.626 | 2 | 1/1 | 0.579/0.599 |
#, total selected number of features; S, shape features; F, first-order radiomics; T, texture features; LV, left ventricle; RV, right ventricle; MYO, Myocardium; ED, end-diastole; ES, end-systole; ACC, accuracy (prediction performance); AUC, area under the curve.