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Abstract #2955

Comparison of Three Different DiffusionWeighted Imaging Acquisitions for Focal Liver Lesions

Zhuo Shi1, Xinming Zhao1, Ouyang Han1, and Lizhi Xie2

1Department Of Imaging Diagnosis,Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing China, Beijing, China, People's Republic of, 2GE Healthcare, MR Research China, Beijing, Beijing, China, People's Republic of

By comparing the breath-hold, respiratory-triggered, and free-breathing techniques in diffusion-weighted magnetic resonance imaging (MRI) for the evaluation of focal liver lesions on a 3.0T system, we found that: The free-breathing DWI is better than others for the patients who want to do the whole liver examination; but for the patients with focal liver lesions who need to do the DWI scan to evaluate the local lesions, the breath-hold DWI was optimal. Generally speaking, the respiratory-triggered DWI of the 3T MRI system had higher SNR and CNR in any case, and it was the best DWI acquisition technique.

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