In the US, more than 4 million patients with chronic stable angina are looking to rule out heart disease. Most undergo functional diagnostic studies that might lead to invasive coronary angiography followed by revascularization. CT has become an alternative diagnostic tool thanks to its precision to rule out heart disease (negative predictive value between 97…
New Technique to Calculate CT-Derived Fractional Flow Reserve: Is It Accurate?
This study describes the accuracy of the new computed tomography (CT) technique to calculate fractional flow reserve (FFR). Other CT techniques to measure FFR use allometric scaling and assume coronary microvascular resistance. However, instead of assuming these parameters, this new technique calculates them based on coronary and aorta lumen deformation. The accuracy of this…
Could CT angiography replace coronary angiography in the short term?
Original Title: CT Angiography for the Prediction of Hemodynamic Significance in Intermediate and Severe Lesions. Head-to-Head Comparison with Quantitative Coronary Angiography Using Fractional Flow Reserve as the Reference Standard. Reference: Matthew J. Budoff et al. J Am Coll Cardiol Img. 2016;9(5):559-564. The aim of this study was to compare the diagnostic accuracy of non-invasive…