WORKSHOP PRESENTATION Open Access Improving cardiac cine MRI on 3T using 2D k-t accelerated auto-calibrating parallel imaging

Recently, 3D cine has gained attention due to its capability for single breath-hold volumetric measurement [1]. None-theless, conventional 2D cine maintains two intrinsic advantages, namely, its superior blood-myocardium con-trast owing to blood in-flow effects and reduced SSFP banding artifacts with more localized slice-by-slice shim-ming. These advantages are more prominent at high field. This work intends to optimize a k-t acceleration method, kat ARC [2], for 2D cine and preliminarily investigate its performance vs. 3D cine at 3T. Methods Variable-Density k-t Sampling (VDkt): As shown in Figure 1, the entire k-t space is divided into sub-bands based on distance from central k-space and these sub-bands are sampled using time-shifted acquisition wit