Simulators which respect both criterias of anatomic background and of physiological flows have several benefits :

• Information : the physical model provides an easy access to non-mesurable in vivo values (pressure, flow debt, velocities, frictions, distensibility, cardiac valves cinematic and closing-noise studies, displays...).
• Full control over the hemodynamic parameters : It is difficult, when operating in vivo, to modify a parameter without modifying the others. Such modifications are made possible on in vitro models.
• A stand for theorical or numerical model : the physical model allows to validate a theorical model and to contribute to the developpement of new criterias of non-invasive diagnostics.
• A model close to physiologic reality : valvular prostheses and endovascular components test conditions are very close to the in vivos (soft linings, 3D physilogic flows, anatomic geometry...).
• A validating tool : simulators allow to develop medical instrumentation through the validation of imaging technics (X Scanner, color Doppler Echocraphy) or of flow measurements (ultrasounds, laser...)