Fig. 4.

Correlation matrix of conventional CMR indices vs radiomics features in the whole sample. The correlation matrix illustrates correlation of each radiomics feature on the x-axis with the conventional CMR metrics indicated on the y-axis. Due to the large number of radiomics features, we grouped the inter-correlated variables into six clusters using hierarchical clustering using Ward’s algorithm. Abbreviations: LVEDV, left ventricular end-diastolic volume; LVEF, left ventricular ejection fraction; LVESV, left ventricular end-systolic volume; LVM, left ventricular mass; RVEDV, right ventricular end-diastolic volume; RVESV, right ventricular end-systolic volume; RVSV, right ventricular stroke volume