Fig. 2
From: Advanced 3D printed model of middle cerebral artery aneurysms for neurosurgery simulation

a Terminal branches of the patient-derived vasculature lumen (left MCA) in which two layers of silicone (line) produced a thinner, more accurate representation of vessel wall thickness than that of three layers (double sided arrow). b 3D print of CAD aneurysm model used to develop c a wax cast and d hollow silicone model