What is the role of intracoronary pressure wires in percutaneous coronary intervention (PCI)?

Updated: Nov 27, 2019
  • Author: George A Stouffer, III, MD; Chief Editor: Karlheinz Peter, MD, PhD  more...
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Answer

Intracoronary pressure wires are used in PCI as follows:

  • Characterization of coronary lesion physiology and estimation of lesion severity
  • Comparison of pressure distal to a lesion with aortic pressure enables determination of fractional flow reserve (FFR); FFR < 0.80 during maximal hyperemia (induced via administration of adenosine) is consistent with a hemodynamically significant lesion

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