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Abstract #3201

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

Junyu Wang1,2, 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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