High Temporal Resolution Retrospective Real-Time Cine Imaging: Shortened Acquisition Via Nonlinear Reconstruction

Hui Xue¹, Peter Kellman², Andrew E. Arai², Michael Schacht Hansen³

While the methods do exist for retrospectively reconstructing high temporal resolution cardiac cine images from real-time free-breathing acquisition, they are not clinical applicable, mainly due to the lengthy acquisition (>30s) required for good image quality. To significantly shorten the required acquisition duration, we propose to utilize the non-linear k-space reconstruction for shortened retrospective real-time cine imaging. In-vivo test shows proposed workflow can achieve good image quality comparable to segmented cine with only 10s of real-time data, which largely improves the usability of retrospective reconstruction of real-time cine.