Fractional flow reserve derived from coronary CT angiography in stable coronary disease: a new standard in...

Area of Science:

• Cardiovascular Imaging and Intervention
• Computational Fluid Dynamics in Medicine
• Non-invasive Diagnostic Modalities for Coronary Artery Disease

Background:

• Invasive fractional flow reserve (FFR) is the gold standard for guiding revascularization decisions in stable coronary artery disease (CAD).
• Current non-invasive testing strategies for CAD often serve as gatekeepers to the catheterization lab but lack comprehensive assessment.
• There is a need for a single non-invasive test that quantifies both coronary lesion severity and associated ischemia.

Purpose of the Study:

• To review the clinical evidence supporting the use of fractional flow reserve computed from CT angiography (FFRCT) in stable CAD.
• To compare the diagnostic performance of FFRCT with other non-invasive testing modalities for stable CAD.
• To evaluate FFRCT as a potential 'holy grail' for non-invasive CAD assessment.

Main Methods:

• Review of existing clinical evidence on FFRCT in stable coronary artery disease.
• Analysis of diagnostic performance data for FFRCT compared to other non-invasive tests.
• Focus on FFRCT derived from standard coronary computed tomography angiography (CTA) datasets.

Main Results:

• Fractional flow reserve computed from CT angiography (FFRCT) demonstrates high diagnostic performance in stable CAD.
• FFRCT integrates anatomical information from coronary CTA with computational fluid dynamics to assess lesion-specific ischemia.
• The evidence supports FFRCT's utility in evaluating coronary lesion severity and ischemia non-invasively.

Conclusions:

• FFRCT shows significant promise as a comprehensive non-invasive tool for stable CAD management.
• This technology can potentially improve the selection process for invasive coronary angiography.
• FFRCT offers high diagnostic accuracy, addressing the need for a single test assessing both lesion severity and ischemia.