Fig. 6
Signal-to-noise ratio (SNR) and circularity of cross-sectional area (CSA) measurements obtained with computed tomography angiography (CTA) and cardiovascular magnetic resonance (CMR) for the different concentrations of contrast media investigated in our study. CTA plots only show the results corresponding to a subset of investigated data acquisition and image reconstruction parameters. Line plots illustrate the mean and standard deviation. ASiR-V indicates adaptive statistical iterative reconstruction-V; CTDIvol, volume CT dose index