Abstract #3344

Highly Accelerated Parallel Imaging Using Variable Density Spiral Acquisition and Spatial Adaptive CORNOL Reconstruction

Sheng Fang¹, Wenchuan Wu², Hua Guo³

¹Institute of nuclear and new energy technology, Tsinghua University, Beijing, China; ²Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China; ³Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine,, Tsinghua University, Beijing, China

A highly accelerated parallel imaging technique based on variable density spiral (VDS) acquisition and spatial adaptive CORNOL reconstruction is proposed. With an optimized undersampling and a reconstruction tailored for VDS, the proposed method can make the full use of MR image features by exploiting both the incoherence of aliasing artifacts and the coherence of image structures. The simulation and in vivo VDS experiments results demonstrate that this method can achieve a very high reduction factor while maintaining high SNR and well-preserved image structure