sentences:  Over the next year, catheters were placed in a similar manner into the right ventricle, and measurements of pressure and cardiac output (using the Fick principle) were performed.In the early 1940s, André Cournand, in collaboration with Dickinson Richards, performed more systematic measurements of the hemodynamics of the heart.For their work in the discovery of cardiac catheterization and hemodynamic measurements, Cournand, Forssmann, and Richards shared the Nobel Prize in Physiology or Medicine in 1956.