Patent ID: 9040016
Filing Date: 2015-05-26
Classification: A61B

Abstract:
1. A method of radioimaging a myocardial perfusion while avoiding at least some liver radioactivity, the method comprising in sequence the steps of: (a) administering to a subject a first dose of a first radiopharmaceutical; (b) subjecting said subject to a physical stress; (c) administering to said subject at a peak of said physical stress a second dose of a second radiopharmaceutical, said second dose being higher than said first dose; and (d) immediately, within a time interval of less than 3 minutes from said administering in step (c), radioimaging a heart of said subject with a radioimaging camera using a 3D non-coincidence imaging method, wherein said first radiopharmaceutical comprises an isotope including Tl-201 or Tc-99m and said second radiopharmaceutical comprises an isotope including Tc-99m or Iodine-123, thereby radioimaging a myocardial perfusion.