Fig. 5
Influence of rotation time, pitch and reconstruction kernel on accuracy and image noise. Shown is the influence of rotation time, pitch, and the reconstruction kernel on image noise (a, c, e) and accuracy (b, d, f) of virtual non-calcium images. Only the reconstruction kernel significantly correlated with accuracy and image noise. Reconstruction kernels (Qr32 through Qr69) in (e, f) are sorted with increasing kernel sharpness from left to right; HU Hounsfield units; rs Spearman rank correlation coefficient