What Is Myocardial Perfusion SPECT?

Q:
What is myocardial perfusion SPECT?

A:
Myocardial perfusion SPECT (Single-photon emission computed tomography) is a well-established test to detect coronary artery diseases and evaluate the heart’s blood supply. It is also called a cardiac stress-rest test.

SPECT is a nuclear medicine topographic imaging technique which uses gamma rays, and provides 3-dimensional (3D) images.

Two sets of images showing blood flow are obtained: the first set following a period of rest, and the second set following a period of stress, such as exercises on a treadmill.

Speaking of the procedures, your vein may be injected into a radiotracer which is made of a radioactive isotope and a pharmaceutical agent.

Myocardial perfusion SPECT can not only be used to evaluate damage caused by myocardial infarction, but also used to asses the presence and extent of myocardial ischemia.

Keywords: myocardial perfusion SPECT; myocardial perfusion single-photon emission computed tomography.

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