1. A computer-implemented method of identifying a personalized cardiovascular device based on patient-specific geometrical information, the method comprising: acquiring a geometric model of at least a portion of a patient's vascular system; obtaining one or more geometric quantities of one or more blood vessels of the geometric model of the patient's vascular system; determining the presence of a pathology characteristic at a location in the geometric model based on the one or more geometric quantities; defining one or more device variables of a personalized cardiovascular device to treat the pathology characteristic; generating an objective function defined by the one or more device variables and hemodynamic or solid mechanics performance characteristics of the personalized cardiovascular device; and optimizing the objective function to identify a plurality of values of the one or more device variables that result in desired hemodynamic or solid mechanics performance characteristics of the personalized cardiovascular device, by performing one or both of computational fluid dynamics and structural mechanics analyses on one or more iterative updates of the one or more device variables using one or more iterative updates of the geometric model.