Left ventricular four-dimensional rotational angiography with low radiation dose through interphase registration

Abstract

Interphase registration significantly improves 4DRA image quality and facilitates semi-automatic segmentation, resulting in clinically useful accuracy despite low-dose image acquisition protocols, while shortening 4D model generation time. This opens the prospect of 4D imaging in clinical settings.

Coping with real world data: Artifact reduction and denoising for motion‐compensated cardiac C‐arm CT

“…A more recent single-sweep protocol alleviates these problems by shortening the acquisition duration to about 14 s, using electrophysiologic pacing to ensure a sufficiently high heart rate so that enough distinct views are observed for each cardiac phase 4 . It has been successfully applied in porcine models 5,6 as well as in humans 7 . In the work of Müller et al 5 , a motion-compensated reconstruction technique was employed in order to achieve good image quality.…”