David Manuel Grodzki1, 2, Peter Jakob1, Bjoern Heismann2, 3
1EP5, University of Wuerzburg, Wuerzburg, Bavaria, Germany; 2Magnetic Resonance, Siemens AG, Erlangen, Germany; 3Friedrich-Alexander-University, Erlangen, Germany
Many MRI sequences use non-selective hard pulse excitation in the presence of imaging gradients. In this work, we investigate possible artefacts due to unwanted slice-selectivity in hard pulse sequences. A correction algorithm is proposed that eliminates the influence of the excitation profile. Phantom as well as in-vivo measurements prove that enhanced image quality can be obtained as long as the first minimum of the excitation profile lies outside the imaged object.