Deformable Registration for Improved Constrained Reconstruction of Ungated Cardiac Perfusion MRI

Keywords

acquisition addition ants applied applying approaches approximate around arrhythmias arrows artifacts binned blood blurring built burden cardiac challenging city clinically coil common complex computational compute computing constrained constraint constraints context continuously contrast correlation cost cross dataset deformable deformation deformations deformed described diastole diastolic directional done dynamic estimating every fashion fewer fidelity final finding folding frame frames framework function gating generated good grid handle heart horizontal identify ignoring improve improved incorporated incorporates incorporating induced injecting intensities intensity inter investment iteration lake lead magnitude major maps matrix media minimization minute minutes model motion muscles myocardial normalization occur papillary pattern peaks perfusion pharmacologically pool preliminary projection proposed pulse quality radial radiology rays reconstructed reconstruction reconstructions recovery reduce registered registration regularization reliance residual respectively respiratory rigid salt saturation self sensing series several severe simplify slices space spacing sparsity spatial spokes still stress summed suppressing systole systolic temporal term tool tools triggers troughs updated variation visualization