<prompt> Answer this question truthfullyCould you please explain the concept of cardiac radionuclide imaging?  <response>: <reason> 1. Rest and exercise perfusion imaging for diagnosis of CAD in hypertrophic cardiomyopathy. IIb B 2. Rest RNA for diagnosis and serial monitoring of hypertensive hypertrophic heart disease. IIb B 1. Rest RNA for diagnosis and serial monitoring of hypertrophic cardiomyopathy, with and without outflow obstruction. III B 