Image quality and contrast agent exposure in cardiac computed tomography angiography prior to transcatheter aortic valve implantation procedures using different acquisition protocols.

Patients with heart rate < 75bmp showed similar heart rates with pro- and retrospective scans, whereas a trend for slightly higher heart rates in patients with retrospective CCTA was noted within the subgroup with heart rates ≥ 75bpm, which however did not reach statistical significance ( Fig. 6 f).

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