Minimally invasive implantation of transcatheter aortic valve replacement (TAVR) has become the standard therapy for patients with severe aortic valve stenosis and increased surgical risk. Postoperative complications, such as subclinical leaflet thrombosis, cause long-term dysfunction of the TAVR, which may lead to patient death without revision therapy. Fluid mechanics mechanisms are associated with the assessment of thrombosis risk of TAVR. Particle Image Velocimetry (PIV) is an established measurement technique for determining the velocity field of a TAVR, which can be used, for example, to infer the residence time of blood in the vicinity of a TAVR. A traversable stereo PIV setup, in which two CMOS cameras were positioned at an angle of 45 ° to the light sheet plane, enabled the detection of tracer particles in the relevant areas around the TAVR. A quasi-volumetric measurement of the physiological velocity field could be performed using a suitable measurement chamber implemented in the hydraulic replica of a cardiovascular system. For this purpose, a realistic implantation environment was reconstructed using radiological data. Using a blood substitute fluid (NaCl-glycerol mixture), the normative (ISO 5840:2021) required kinematic viscosity of ν = 3.5 was realized. Phase-triggered recordings allowed measurements at defined time points in the cardiac cycle. Overall, it was possible to capture the complex flow topology in all relevant areas with the presented measurement setup and thus to estimate the risk of thrombosis in the future.