There are certain things that we all like to know early enough. For example, if we are at risk of a heart attack. There are many precursors: a feeling of tightness, sharp pain behind the sternum or shortness of breath. Myocardial perfusion scintigraphy is an established diagnostic method that has been developed over many decades, and provides information on the circulation and functioning of the heart – at rest and under stress. An unobtrusive myocardial scintigram also almost completely rules out the threat of a heart attack or cardiac death in the case of a known cardiac circulatory disorder for the next one to two years! Through this examination, it is therefore also possible to state whether a cardiac catheter examination (coronary angiography) is necessary.