Virtual Monoenergetic Imaging of Thoracoabdominal CTA on a Photon-Counting Detector CT: Assessment of Image Quality and Leveraging Low-keV Series for Salvaging Suboptimal Contrast Acquisitions
Katharina Rippel,
Josua A. Decker,
Jan Luitjens
et al.
Abstract:Purpose
To assess the possibility of image improvement of ECG-gated, high-pitch computed tomography angiography(CTA) of the thoracoabdominal aorta before transaortic valve replacement(TAVR) on a novel dual-source photon-counting detector CT(PCD-CT) in the setting of suboptimal low-contrast attenuation.
Methods
Continuous patients who underwent an ECG-gated, high-pitch CTA of the aorta on a PCD-CT with a contrast decrease of at least 50% between the ascending aorta and the common femoral arteries(CFA) were incl… Show more
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