Figure 3.

The data processing procedure of RICS consists of two portions: The generation of reference images f_ref(t) and the reconstruction of DCE images f(t). For the first portion (step 1), the inputs are the fully sampled data sets acquired in the fully sampled phase, g_{full 1} and g_{full 2} and the outputs are the high resolution reference images f_ref(t) and the corresponding k-space data g_ref(t). For the second portion, first, g_u,ref(t) are extracted from g_ref(t) using the same undersampling scheme for acquiring g_u(t) (step 2). Next, for each time point, the k-space data set g_u(t) acquired in the undersampled phase subtracts the corresponding g_u,ref(t) to produce the undersampled k-space data g_u,vary(t) (step 3). Then the constrained l₁-norm minimization problem is solved to reconstruct f_vary(t) (step4). Finally, f_vary(t) are added to the reference images f_ref(t) to reconstruct DCE images f(t) (step 5).