What is the physiologic basis for myocardial perfusion imaging?

Updated: Nov 20, 2018
  • Author: Richard S Krause, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Answer

Answer

Myocardial perfusion imaging offers a method of visualizing blood flow to the heart by injection of a radioactive cardiac specific tracer. This improves the diagnostic accuracy of a stress test since it gives another method of detecting perfusion defects in addition to measuring ST depression. Myocardial perfusion imaging offers the additional advantage of estimating left ventricular function. The technique can also be used independent of a stress test when given to patients with acute active chest pain.


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