Abstract #3201

Weighted k-t SPIRiT with Golden Angle Radial Sampling for Dynamic Contrast-Enhanced Liver Imaging

Junyu Wang^1,2, Fuyixue Wang², Yajie Wang², Jia Ning², Zijing Dong², Kui Ying³, and Huijun Chen²

¹Department of Biomedical Engineering, Beijing Jiaotong University, Beijing, People's Republic of China, ²Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, People's Republic of China, ³Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Medical Engineering and Institute, Department of Engineering Physics, Tsinghua University, Beijing, People's Republic of China

Acquiring high spatial-temporal resolution images is important for dynamic contrast-enhanced (DCE) imaging. In this work, we proposed a weighted k-t SPIRiT method and tested it in both simulation and in-vivo liver imaging studies based on motion-insensitive golden angle radial stack-of-stars sampling. In this study, feasibility of the weighted k-t SPIRiT has been validated. The results showed that, weighted k-t SPIRiT can improve the image quality compared with SPIRiT, while preserve highly accurate temporal information.

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