Real time cardiac MRI: spline-based spatio-temporal reconstruction of spiral data

Results obtained on the numerical phantom demonstrated that the time resolution of the reconstructed data could be improved by a factor of 3 when using a high enough spline degree, without sacrifying the SNR (11.5 dB for sliding window and 10.3 dB for the proposed method with α=5, whereas only 5.78 dB for α=0) (figure [figure omitted; refer to PDF] ). [...] the edge strength of the endocardium was recovered for the proposed method (edge strength was 10.4e-2a.u. for sliding window and 13.9e-2a.u. for our method with α=5) (figure [figure omitted; refer to PDF] ).