myokardperfusion
Myocardial perfusion refers to the flow of blood through the coronary circulation to the heart muscle (myocardium), delivering oxygen and nutrients needed for contraction and metabolism. Perfusion is governed by coronary blood flow, perfusion pressure, and the balance between myocardial oxygen demand and supply. Under normal conditions the heart regulates flow to meet demand, with the subendocardial regions being particularly sensitive to supply shortfalls.
Physiology and assessment of perfusion focus on detecting regional differences in blood flow. Adequate perfusion depends
Imaging techniques for myocardial perfusion include noninvasive methods such as single-photon emission computed tomography (SPECT) and
Interpretation centers on identifying reversible defects, which suggest inducible ischemia due to significant coronary narrowing, versus