When undergoing a nuclear heart scan, many patients are concerned about the level of radiation they will be exposed to. Understanding the concept of radiation dose can help alleviate some of this anxiety. The level of unknowns compared to the technology used during scans, however, often leaves patients worried.
Radiation dose, measured in units such as millisieverts (mSv) or اسکن هسته ای قلب milligrams of radiation absorbed (mGy), refers to the amount of electromagnetic radiation that passes through the human body. In a nuclear heart scan, also known as a myocardial perfusion scan, a small amount of radioisotope tracer is injected into the patient's bloodstream.