Instantaneous wave-free ratio versus fractional flow reserve

Financiering

Dr. Pijls reports receiving consulting fees from St. Jude Medical and Opsens, owning equity in Heartflow, Philips, General Electric, and Advanced Semiconductor Materials Lithography, and that his institution receives grant support from St. Jude Medical; Dr. De Bruyne, holding shares in Siemens, General Electric, Bayer, Philips, Heartflow, Edwards Lifesciences, Sanofi, and Omega Pharma, receiving consulting fees from St. Jude Medical, Opsens, and Boston Scientific, and that his institution (Cardiovascular Center, Aalst, Belgium) receives grant support from Abbott Vascular, Boston Scientific, Biotronik, and St. Jude Medical. No other potential conflict of interest relevant to this letter was reported.