Viscous dissipation energy as a risk factor in multiple cerebral aneurysms

The hydrodynamic properties of the blood flow in cerebral vessels with multiple aneurysms are studied in the paper. We compare the sets of parameters derived from the dissipation energy appearing due to the blood viscosity and computed for different aneurysms of one patient. Numerical simulations show that in most cases the dissipation energy and its derived parameters are lower in the case of ruptured aneurysm. Moreover, the average dissipation energy per unit volume is lower in all cases studied here.