PRrospEctive Comparison of FFR Derived From Coronary CT Angiography With SPECT PerfuSion Imaging in Stable Coronary ArtEry DiSeaSe
The ReASSESS Study
Niels Peter Rønnow Sand, Karsten Tange Veien, Søren Steen Nielsen, Bjarne Linde Nørgaard, Pia Larsen, Allan Johansen, Søren Hess, Lone Deibjerg, Majed Husain, Anders Junker, Kristian Korsgaard Thomsen, Allan Rohold and Lisette Okkels Jensen
SPECT perfusion imaging and FFRCT analysis were performed at core laboratories between the time of the coronary CTA examination and the invasive procedure. The results of core laboratory FFRCT analysis and SPECT test assessments had no impact on referral to invasive angiography and were blinded to the interventionalists. CAC = coronary artery calcification; CTA = computed tomography angiography; FFRCT = fractional flow reserve derived from coronary computed tomography angiography; SDS = summed difference score; SPECT = single-photon computed tomography angiography; TID = transient ischemic dilation.