In standard diffusion-weighted imaging, the parameter maps are calculated based on a set of magnitude images. The standard fitting model of the parameter maps does not take a noise-induced bias into account. A noise offset model for Intravoxel Incoherent Motion (IVIM) in Diffusion Weighted Imaging (DWI) is introduced and the impact on diffusion parameter maps is evaluated for muscle and synovia of the knee joint. Parameter fitting using the noise-offset model results in faster signal decay of the fitted curve and therefore in increased diffusion coefficients compared to standard IVIM mapping.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords