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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