Figure 1
From: Hemodynamic study of TCPC using in vivo and in vitro 4D flow MRI and numerical simulation
4D-Flow-MRI was used to quantify flow hemodynamics in a 2 YO patient with a total cavo-pulmonary connection, and compared to a patient-specific numerical simulation. A. In vivo flow distribution (streamlines) obtained from 4D-Flow-MRI (Ensight) (arrows show small vascular branches excluded in the numerical and physical models). B. Numerical mesh obtained from an angiogram generated from the 4D-Flow-MRI data (Mimics). C. Flow distribution (streamlines) obtained from the numerical simulation (Comsol). Similar results for maximum velocity were obtained in vivo (0.45 m/s) and in silico (0.56 m/s). In addition, good agreement was found between flow distribution (%) into the RPA and LPA in both the in vivo (70% vs 30%) and the numerical simulation (78% vs 22%) case.