FAVOR: Diagnostic Accuracy of FFR derived from coronary angiography, the QFR

Original Title: Diagnostic accuracy of a fast computational approach to derive FFR from coronary X-ray angiography: results from the international multicenter FAVOR (Functional Assessment by Varios flow Reconstruction) pilot study.
Presenter: Shengxian Tu.

 
Pressure gradient across coronary stenosis is associated to flow and influenced by obstruction geometry. The QFR (quantitative flow ratio) is a new method to rapidly derive FFR from conventional angiographic images with the help of software. The aim of this study was to assess the accuracy and feasibility of QFR.

 

Lesions were assess by conventional FFR under maximal hyperemia vs. QFR with contrast and adenosine administration. Mean obstruction extension of lesions was 64%±4.5 and mean FFR was 0.84. QFRc analyzis (QFR contrast) and QFRa (QFR adenosine) revealed high correlation and correspondence to FFR. Areas under the curve were 0.92 and 0.91 for QFR with contrast and adenosine, respectively.

 
Conclusion
Mean QFR derived from angiography is feasible and has the potential to reduce time, risks and costs in the functional assessment of lesions.

 

favor

More articles by this author

SYNTAX II: Initial outcomes of FFR/iFR and IVUS guided PCI with last generation DES in 3 vessel patients

Original Title: iFR/FFR and IVUS-guided percutaneous coronary revascularization with new-generation DES in patients with de novo three-vessel disease: 30-day outcomes of the SYNTAX II...

PRIME-FFR: Safe in acute coronary syndrome

Original Title: Impact of routine Fractional Flow Reserve on management decision and 1-year clinical outcome of ACS patients: Insights from the POST-IT and R3F...

FFRangio: New Software Derives FFR Value from Angiography

Original Title: Image-based FFR during coronary catheterization. Presenter: Mariano Pellicano.   Fractional flow reserve (FFR) is considered the gold standard to detect myocardial ischemia; however, due to...

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Related Articles

SOLACI Sessionsspot_img

Recent Articles

TCT 2024 | FAVOR III EUROPA

The study FAVOR III EUROPA, a randomized trial, included 2,000 patients with chronic coronary syndrome, or stabilized acute coronary syndrome, and intermediate lesions. 1,008...

TCT 2024 | TRISCEND II

This randomized study included 400 patients; 267 were treated with EVOQUE valve and 133 with optimal medical treatment (OMT). After one-year follow-up, there were no...

TCT 2024 – ACCESS-TAVI: Comparing Percutaneous Access Closure Strategies After TAVI

Vascular access complications following transcatheter aortic valve implantation (TAVI) remain common. However, few studies compare vascular access closure methods.  Based on the CHOICE-CLOSURE and MASH...