Figure 1.

Workflow of the study. For each model, several options are possible: the heart can be considered a whole or a set of subparts; several groups of predictors can be considered; they can be preliminary filtered or not; four models can be used. We systematically explored each possible combination. For example, the blue path means that we compute the first-order dosiomics over each heart’s subpart, we perform the procedure described in Section 2.3.1, and we learn from the resulted predictors with a Cox Lasso model.