The Essentials of Cardiac ImagingAbout This Hardback Cardiac imaging refers to non invasive imaging of the heart using echocardiography, cardiac MRI, cardiac CT, cardiac PET, and cardiac SPECT. Echocardiography is a type of medical imaging of the heart using standard ultrasound or Doppler ultrasound. Cardiac magnetic resonance imaging is a medical imaging technology for non invasive assessment of the functions and structure of the cardiovascular system. A CT scan of the heart is used