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Abstract #0877

Diagnostic ability of Whole-Body Diffusion-Weighted Imaging in malignant tumors compared with PET-CT

Xiaoyi Wang1, Ning Wu1, Yanfeng Zhao1, Han Ouyang1, Lizhi Xie2, Jin Zhang1, Li Liu1, Wenjie Zhang1, Rong Zheng1, Ying Liang1, and Ying Liu1

1Department of Diagnostic Imaging, PET-CT Center, Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing,China, Beijing, China, People's Republic of, 2GE Healthcare China, Beijing, China, Beijing, China, People's Republic of

Because of its convenience in whole body examination, whole body MRI is growing popular, especially in the tumor diagnosis. In the present work, the diagnostic ability of whole-body diffusion-weighted imaging in malignant lesions is compared with that obtained with 18F-FDG PET-CT. We found that WBDWI was an effective method for screening bone metastasis, especially suitable for radiation-vonuerable population, and it is better than PET-CT in detecting low grade malignant tumor. In summary, WBDWI can be used as a potential alternative to PET/CT in addition to conventional MR examination.

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