Reconstruction Exploiting Phase-Correlation Motion Estimation and Motion Compensation Methods for Cine Cardiac Imaging

Mei-Lan Chu¹, Jia-Shuo Hsu¹, Hsiao-Wen Chung¹

Motion estimation (ME) and motion compensation (MC) are successfully exploited by dynamic MRI as baseline estimation for enhancing reconstruction. However, ME and MC have not been exploited as a standalone approach for direct dynamic MRI reconstruction, since the absence of full-resolution frames. A robust reconstruction technique was proposed in this work to address this issue, based solely on phase-correlation ME and MC methods without incorporating extra reconstruction routine. Cine cardiac images are tested with the proposed method, and the results indicate that the proposed method can achieve improved temporal resolution even from substantially down-sampled k-space data.