Developments in hybrid scanning

Image registration has long been a vital tool in medical imaging, and nuclear cardiology is no xception. Frequently, more than one imaging procedure is used during evaluation of patients for cardiac disease. Coronary angiography is the gold standard for diagnosis of coronary artery stenosis; magnetic resonance imaging (MRI) is performed to determine gross anatomy and function, and single-photon emission computed tomography (SPECT) or positron emission computed tomography (PET) is used to evaluate myocardial perfusion.