To date, no study has compared 12-fold accelerated real-time cine MRI with compressed sensing (CS) between Cartesian and radial k-space sampling schemes. We sought to compare their performance in patients and volunteers. We compared point spread functions (PSF) to determine which sampling pattern generates more incoherent aliasing artifacts. We also compared their performance in a group of 15 patients and one volunteer, where 3-fold accelerated product real-time MRI was used as reference. Two cardiologists independently graded images from each subject.
PSF analysis showed that radial produces more incoherent aliasing artifacts. Image quality was better for radial than Cartesian sampling schemes.