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Abstract #2191

Improvement of Renal Diffusion-Weighted MR Imaging with readout-segmented Echo-Planar Imaging at 3T

Iris Friedli 1 , Lindsey A Crowe 1 , Magalie Viallon 1 , Sophie de Seigneux 2 , and Jean-Paul Valle 1

1 Radiology, Geneva University Hospital, Geneva, Switzerland, 2 Nephrology, Geneva University Hospital, Geneva, Switzerland

The use of diffusion-weighted imaging for renal study is challenging due to limited spatial resolution, image blurring and severe geometric distortions at tissue-air, tissue-intestine interfaces. We report on the first comparison in kidney between a readout segmentation of long variable echo-trains (Resolve) strategy with different versions of single-shot SE-EPI. A key result is the benefit of Resolve to drastically improve both the diffusion image quality by reducing susceptibility artifacts and the measurement of the Apparent Diffusion Coefficient (ADC) of the cortex and medulla.

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