What is a myocardial perfusion spect test?
A myocardial perfusion SPECT (Single Photon Emission Computed Tomography) study, also called a cardiac stress-rest test, is used to evaluate the heart’s blood supply.
What is regadenoson myocardial perfusion?
At our Institution, regadenoson was the first pharmacologic stressor introduced in clinical practice in 2013. Applied in a fixed dose of 400 ug/5ml as an intravenous bolus, it dilates coronary arteries reaching peak in circulation within 1-4 minutes increasing blood flow 2,4-fold above the baseline.
What does a myocardial perfusion study show?
Myocardial perfusion is an imaging test. It’s also called a nuclear stress test. It is done to show how well blood flows through the heart muscle. It also shows how well the heart muscle is pumping.
How does the myocardial perfusion SPECT test work?
Myocardial Perfusion SPECT. A myocardial perfusion SPECT (Single Photon Emission Computed Tomography) study, also called a cardiac stress-rest test, helps your doctor evaluate your heart’s blood supply. Two sets of images showing blood flow are obtained: the first following a period of rest, and the second following a period of stress (i.e.,…
When to use regadenoson as a stress test?
regadenoson stress test is indicated in patients unable toundergo adequate exercise stress and in the presence of thefollowing condition: Inability to perform adequate exercise due to noncar-diac physical limitations or lack of motivation
How big is the central compartment of regadenoson?
Regadenoson has volumes of distribution of 11.5 l (central compartment) and 78.7 l (steady state) and an estimated clearance of 37.8 l/h [9]. Vasodilator stress myocardial perfusion imaging accounts for approximately half of the stress studies in the USA.
How is radioactive isotope used in myocardial perfusion SPECT?
In the radiotracer used for myocardial perfusion SPECT, the pharmaceutical part keeps the tracer in the blood until it is filtered out by the kidneys. The radioactive isotope releases energy, and a special camera creates an image from it. The image shows any area with abnormal blood flow indicating a problem in the heart or vessels.