Coronary Artery Disease Clinical Trial
Official title:
Diagnostic Performance of On-site Automatic Coronary Computed Tomography Angiography-derived Fractional Flow Reserve
The current study evaluated the diagnostic performance for myocardial ischemia of on-site automatic CCTA-derived FFR (CT-FFR) using a commercially available workstation as compared with invasive FFR as a reference. The diagnostic performance of CT-FFR was compared to that of CCTA diameter stenosis.
This is a retrospective, multicenter, comparative, investigator-initiated study to evaluate the diagnostic performance of CT-FFR from routinely acquired CCTA data using the software HeartMedi+ 1.0 (AI Medic, Korea) to detect hemodynamically significant CAD. Patients who underwent CCTA within 90 days before invasive coronary angiography and FFR measurement will be screened in each participating center. After that, invasive coronary angiography, FFR data, and CCTA data will be anonymized and transferred to the independent core laboratories and analyzed in a blind fashion. The presence of ischemia was defined as FFR ≤0.80. Anatomical obstructive stenosis was defined as diameter stenosis on CCTA ≥50%, and the diagnostic performance of CT-FFR and CCTA stenosis for ischemia was compared. ;
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