Accelerated 2D Cine DENSE MRI using Golden-Angle Spiral Acquisition and Compressed Sensing Reconstruction

Motivation: To accelerate the acquisition time of 2D spiral cine DENSE MRI for strain imaging. Goal(s): To develop a golden-angle-ordered spiral cine DENSE sequence and a compressed sensing MRI reconstruction method and investigate the performance retrospectively undersampled datasets. Approach: We used a compressed sensing model with constraints in the spatial domain and also along the cardiac phase domain for image reconstruction. We compared the image quality and the strain measurements from data acquired with linear ordering and golden-angle ordering. Results: We demonstrated 1.5-fold accelerated 2D cine DENSE MRI. The proposed work may facilitate efficient DENSE data acquisition for strain imaging in clinical settings. Impact: The proposed work may facilitate efficient DENSE data acquisition for strain imaging in clinical settings.