Cardiology Interpreting myocardial perfusion SPECT images involves a systematic comparison of rest and stress images to assess myocardial ischemia and infarction. The key steps in…

…equally compromised, leading to uniform perfusion that may appear deceptively normal on SPECT. Detecting multivessel disease requires quantification of absolute coronary blood flow. This is…

Cardiology Principles of myocardial perfusion imaging Myocardial perfusion imaging (MPI) is a non invasive technique for detecting and quantifying coronary artery disease (CAD). It offers…

…induce myocardial electrical activity by generating adequate coronary perfusion pressure (CPP). Myocardial activity is necessary to salvage the brain, and is therefore of prime importance…

…perfusion imaging can determine whether dysfunctional myocardium or myocardium supplied by a diseased vessel, is viable and could benefit from revascularization. Evaluating the success of…

…Return of Spontaneous Circulation (ROSC) : Return of mechanical cardiac function resulting in circulation with pulse. Coronary perfusion pressure (CPP) : The pressure that drives blood flow…

Cardiology Myocardial ischemia and infarction Definition and Clinical Purpose Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) or positron emission tomography (PET…

…120 seconds of cardiac arrest and light reactivity is lost when cerebral blood flow ceases. In other words, during prolonged cardiac arrest without effective perfusion…

…impaired ventilation–perfusion matching, increased physiological dead space and the Haldane effect. It is therefore misleading to explain the whole phenomenon as abolition of the…

…This results in flow heterogeneity and perfusion defects in areas supplied by the disease artery. Thus, vasodilators replicate the effects of exercise on coronary arteries…