Abstract #0005

Blaimer M, Barkauskas K, Kannengiesser S, Breuer F, Jakob P, Duerk J, Griswold M

BLADE (a.k.a., PROPELLER) MRI is an efficient acquisition and reconstruction technique that allows motion correction. However, the scan time is increased compared to conventional imaging. Recently, k-space undersampled BLADE MRI was proposed for reducing the imaging time. However, this method introduces image artifacts. Here, we present a reconstruction approach that allows one to reduce these artifacts. It is based on a k-space extrapolation of acquired data using the parallel GRAPPA-Operator technique. Unlike other approaches incorporating parallel imaging, this method is totally self-calibrated and can still be combined with conventional parallel imaging to provide even further reductions in imaging time.