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Abstract #1818

Intravoxel Incoherent Motion Diffusion-weighted MR Imaging of the Liver: Influence of Combined Respiratory-cardiac Triggering Method on Signal-to-noise Ratio and Repeatability of Quantitative Parameters

Jinning Li1, Caiyuan Zhang2, Yanfen Cui2, Huanhuan Liu2, Weibo Chen3, and Dengbin Wang2

1Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China, 2Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 3Philips Healthcare

As extremely susceptible to various kinds of motions, diffusion-weighted magnetic resonance imaging always leads to insufficient image quality and poor reproducibility of quantitative measurements, especially for the liver. However, the use of combined respiratory-cardiac triggering, sychronizing data acquisitions with respiratory and cardiac cycles, could effective improve the signal-to-noise ratio and the repeatability of apparent diffusion coefficient and intravoxel incoherent motion parameters in the liver compared with respiratory triggering and free breathing without triggering method.

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