Statistical analysis performed using pearson correlation coefficient on the left (x- and y-axis show GFR in ml/min) and a Bland-Altman analysis on the right (x-axis shows GFR in ml/min, y-axis shows the difference between GFR values obtained using CTA and reference standard in %).

<p>Good correlation with a correlation coefficient of r = 0.84 (p = 0.0002). The Bland-Altman graph shows good agreement between GFR derived from dynamic CTA and GFR derived by reference method with a systematic error of only 3%.