AngiocardiographyGated Blood-Pool ImagingRadionuclide AngiographySodium Pertechnetate Tc 99mTechnetiumVentriculography, First-PassIridiumStroke VolumeCineangiographyHeartHeart VentriclesRadionuclide GeneratorsDextrocardiaVentricular Function, LeftRadionuclide ImagingRadioisotopesRadionuclide VentriculographyHeart Defects, CongenitalCardiac CatheterizationCesium RadioisotopesWater Pollutants, RadioactiveEchocardiographyStrontium RadioisotopesCoronary DiseaseSoil Pollutants, RadioactiveRadioactivityRadiometryRheniumRadiopharmaceuticals