Myocardial perfusion imaging (MPI) tests are often used to help diagnose coronary heart disease (CAD). The tests usually involve applying stress, such as hard physical exercise together with administration of vasodilators, to the patients. To date, many of these tests use non-selective A2A adenosine receptor agonists which, however, can be associated with highly undesirable and life-threatening side effects such as chest pain, dyspnea, severe bronchoconstriction and atrioventricular conduction anomalies. Regadenoson is a relatively new, highly selective A2A adenosine receptor agonist, suitable for use in MPI tests which exhibits far fewer adverse side effects and, unlike others testing agents, can be used without the necessity of excessive concomitant exercise. Also, the dose of regadenoson required is not dependent upon patient weight or renal impairment, and it can be rapidly administered by i.v. Injection. Regadenoson use in MPI testing thus has the potential as a simplified, relatively safe, time-saving and cost-effective method for helping diagnose CAD. The present study was designed to review several articles on the safety, efficacy, and suitability of regadenoson in MPI testing for CAD. Overall, the combined studies demonstrated that use of regadenoson in conjunction with low-level exercise in MPI is a highly efficient and relatively safe test for CAD, especially for more severe health-compromised patients.
Ambereen Ahmed, "Safety and efficacy of Regadenoson in myocardial perfusion imaging (MPI) stress tests: A review," Proc. SPIE 10503, Quantitative Phase Imaging IV, 1050311 (Presented at SPIE BiOS: January 30, 2018; Published: 23 February 2018); https://doi.org/10.1117/12.2281326.
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