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Abstract #3027

A Motion Correction Method Based on Navigator for Simultaneous PET/MR abdominal Imaging

Ke Meng1,2,3, Lingzhi Hu4,5, and Qun Chen5

1Shanghai Advanced Research Institute, Shanghai, China, 2University of Chinese Academy of Sciences, Beijing, China, 3Shanghai Tech University, Shanghai, China, 4UIH America Inc, Houston, TX, United States, 5United Imaging Healthcare, Shanghai, China

The integrated PET/MR combines the advantages of functional imaging device PET and high resolution high contrast MRI, simultaneously acquiring PET and MR images at the same position, improving image fusion accuracy. However, respiratory motion during abdominal imaging causes notorious motion artifact in the MRI images and blurring the PET images. A PET/MR motion correction method based on real-time 2D excitation navigator has been implemented and evaluated. Phantom and human imaging result implies that this technique can precisely acquire object motion and effectively eliminate motion blurring. Without additional operation and device, it offers a simple and cost-down way for clinical use.

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