Meeting Banner
Abstract #2685

Preliminary Study of Resuability of Optimized Trajectory for SENSE

Dan Zhu1, Zhengwei Zhou2, Feng Huang3, Kui Ying4

1Department of Biomedical Engineering, Tsinghua, Beijign, China; 2Department of Biomedical Engineering, Tsinghua, Beijing, China; 3Philips Healthcare, Beijing, China; 4Department of Engineering Physics, Tsinghua, Beijing, China

The speed of imaging remains one of the basic challenges in Magnetic Resonance Imaging. A large amount of work on fast imaging was focused on studying how to reconstruct an image from a fixed undersampling design. Much less work was done on how to choose the sampling design at the first place. Since trajectory optimization is usually computationally expensive, in this work, we focus on studying the reusability of optimized trajectory. This topic was studied from the following 4aspects: whether the optimized trajectory can be shared among images of different contrasts, different subjects, different slices and different coils.

Abstract PDF Poster PDF

Keywords

accepted adopt among amount annealing applied aspects attempt available basic best better biomedical bottleneck brain brightened build calculation certain challenges channel china choose clinical coil coils computationally continues contrasts corp correlated define design designed determine done engineering equally error evaluate even every example expensive fast find fixed focus focused former function important knowledge limited maps much negatively objective ones optimization optimized otherwise paper parallel patient physics place potential practice preliminary probability problem published qualitative quality questions radiology reconstruct reconstructed reduction remains replacing respectively root sampling scanned scenarios scheme science selected sense shared simplicity simulated since slice slices solve spaced speed square stands starts step studied subject subjects suppression system temperature topic trajectories trajectory unselected usually whether widely