Abstract #3044

Relative enhanced diffusivity in terms of intravoxel incoherent motion

Peter T. While¹, Jose R. Teruel^2,3, Igor Vidić⁴, Tone F. Bathen², and Pål E. Goa⁴

¹Department of Radiology and Nuclear Medicine, St. Olav's University Hospital, Trondheim, Norway, ²Department of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, ³St. Olav's University Hospital, Trondheim, Norway, ⁴Department of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

Relative enhanced diffusivity (RED) is a recently proposed parameter for DWI that is strongly weighted by pseudo-diffusion and provides good tissue discrimination using only three b-values. In this work we perform a theoretical study on the link between the RED parameter and the intravoxel incoherent motion (IVIM) model, and we derive a simple approximate expression for describing this relationship.

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