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Park JJ, Petraco R, Nam CW, Doh JH, Davies J, Escaned J, Koo BK

Clinical validation of the resting pressure parameters in the assessment of functionally significant coronary stenosis; results of an independent, blinded comparison with fractional flow reserve.

Int. J. Cardiol.. 2013 Oct;168(4):4070-5, PMID: 23890849

The role of resting pressure parameters, i.e. instantaneous wave-free ratio (iFR), and resting distal coronary pressure/aortic pressure (Pd/Pa) in assessing functionally significant stenosis remains controversial. We sought to assess the diagnostic performance of iFR and resting whole-cycle Pd/Pa in Asian patients.


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