- Further diagnostic testing may be required after a coronary computed tomography angiography (CTA) showing suspected coronary stenosis. Whether myocardial perfusion imaging (MPI) provides further prognostic information post-CTA remains debated. We evaluated the prognosis for patients completing CTA stratified for post-CTA diagnostic work-up using real-world data.
- Onsite workstation-based CT-derived Fractional-Flow-Reserve (CT-FFR) is accurate in assessing hemodynamic-significance of coronary stenoses. We aim to describe the influence of operator expertise and luminal-segmentation technique on the diagnostic performance, precision and reproducibility of CT-FFR in identifying hemodynamically-significant stenosis (FFR≤0.8).
- The influence of computed tomography (CT) reconstruction algorithms on the performance of machine-learning-based CT-derived fractional flow reserve (CT-FFRML) has not been investigated. CT-FFRML values and processing time of two reconstruction algorithms were compared using an on-site workstation.
- Anomalous aortic origin of coronary artery (AAOCA) is rare but critical for the association with sudden cardiac death. In detecting the origin of AAOCA, coronary CT angiography is more accurate than invasive coronary angiography, but only with anatomical evaluation. A novel technology FFRCT, which is noninvasively computed by coronary CT image, can evaluate functional ischemia of coronary artery even without atherosclerotic plaque and has potential for innovation in AAOCA.