BACKGROUND: Landmark trials showed that invasive pressure measurement (Fractional Flow Reserve, FFR) was a better guide to coronary stenting than visual assessment. However, present-day interventionists have benefited from extensive research and personal experience of mapping anatomy to hemodynamics. AIM...
INTRODUCTION: FFR is the most validated method for evaluating the physiological significance of non-occlusive coronary stenosis. FFR is the ratio of distal pressure (Pd) and aortic pressure (Pa) determined during adenosine induced hyperemia. Nonhyperemic pressure ratios were later introduced and validate...
A fisiologia coronariana tornou-se o padrão de tratamento para avaliar o significado funcional da doença aterosclerótica coronariana. Ela permite identificar isquemia miocárdica em nível de vaso, discriminar os padrões funcionais da doença aterosclerótica e orientar a necessidade de revasculariza...
INTRODUCTION: Fractional flow reserve (FFR) is the gold standard to evaluate severity of coronary stenosis. Quantitative flow ratio (QFR) is a new angiography-based method used to infer FFR. Studies have shown >90% agreement between QFR and FFR. OBJECTIVE: To conduct a systematic review and diagnostic ac...
