title: A new method for quantification of aortic regurgitation during cardiac catheterization.
abstract: Clinical methods of estimating aortic insufficiency are unsatisfactory. We developed a radioisotope method of quantitating aortic regurgitant volume. The method is easily performed, convenient, and can be carried out repetitively. The mathematical derivation of the method is presented and a mechanical model is used to verify assumptions. The potential utility and possible difficulties of applying the method clinically are discussed.
mesh_terms: D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008433:Mathematics; D008722:Methods; D008953:Models, Anatomic; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium