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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