Phase contrast imaging using sensitivity encoding and automatic coil sensitivity estimation: a feasibility study
Dept. of Biomedical Engineering
The purpose of this work was to study the feasibility of phase contrast imaging combined with sensitivity encoding, where coil sensitivities are estimated during the actual measurement. The coil sensitivity estimation is performed by acquiring additional autocalibration signals (ACS-lines). A simulated phase contrast imaging measurement was performed using authentic complex valued coil sensitivities and a synthetic object. The data set was reduced corresponding to different reduction factors. Various numbers of ACS-lines were used for coil sensitivity estimation. The results show that it is feasible to obtain accurate velocity and flow measurements. The number of ACS-lines is decisive for the accuracy.