Improving Spatial Resolution using Oblique Scanning in Compressed Sensing MRI

Abstract

A novel sampling strategy suitable for compressed sensing MRI (CS-MRI) is proposed. Spatial resolution of reconstructed images is sometimes reduced due to variable density random undersampling. To improve spatial resolution in CSMRI, oblique scanning in k-space for the read-out direction is adopted to acquire a higher spatial frequency for the phaseencoding direction. Reconstruction experiments showed that spatial resolution can be improved without lengthening scan time.