Robust multishot diffusion‐weighted imaging of the abdomen with region‐based shot rejection
Philip K. Lee,
Xuetong Zhou,
Brian A. Hargreaves
Abstract:PurposeDiffusion‐weighted (DW) imaging provides a useful clinical contrast, but is susceptible to motion‐induced dephasing caused by the application of strong diffusion gradients. Phase navigators are commonly used to resolve shot‐to‐shot motion‐induced phase in multishot reconstructions, but poor phase estimates result in signal dropout and Apparent Diffusion Coefficient (ADC) overestimation. These artifacts are prominent in the abdomen, a region prone to involuntary cardiac and respiratory motion. To improve… Show more
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