摘要
In the last several years,the rate of innovation in cardiac imaging techniques has accelerated signifi cantly.Advances have been seen in all 4 major modalities;echocardiography,nuclear(positron emission tomography(PET)and single photon emission computed tomography(SPECT),cardiac magnetic resonance imaging(CMR),and computed tomographic angiography(CTA).This issue of Cardiovascular Innovations and Applications will highlight many of these advances.