The correlation between intravascular ultrasound anatomical parameter and fractional flow reserve in intermediate coronary artery stenosis




Background


A fractional flow reserve (FFR) of <0.8 or 0.75 is currently used to guide revascularization in lesions with intermediate coronary stenosis. Whether there is an intravascular ultrasound (IVUS) measurement that can be reliably used to predict when patients should undergo intervention is unclear.




Aim


To determine the minimal luminal area (MLA) obtained by IVUS that correlates with an FFR <0.8 or 0.75 in patients with intermediate coronary stenosis.




Aim


To determine the minimal luminal area (MLA) obtained by IVUS that correlates with an FFR <0.8 or 0.75 in patients with intermediate coronary stenosis.




Methods


The analysis included 92 intermediate lesions (84 patients) located in a vessel diameter >2.5 mm. All were evaluated by both FFR and IVUS. A positive FFR was considered present when it was <0.8 and 0.75. IVUS MLA was correlated to the FFR findings in intermediate lesions with 40–70% stenosis.

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Nov 16, 2017 | Posted by in CARDIOLOGY | Comments Off on The correlation between intravascular ultrasound anatomical parameter and fractional flow reserve in intermediate coronary artery stenosis

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