We extend the diffusion tensor distribution imaging framework so that each subdomain making up the tissue is represented by an effective confinement (rather than diffusion) tensor. The confinement tensor is determined by the subdomain’s shape as well as the acquisition parameters and is the physical quantity that leads to microscopic diffusion anisotropy. In this approach, the scalar-valued diffusivity remains as an independent parameter, which could be different in different subdomains. We demonstrate the difficulties in estimating compartment-specific diffusivity alongside the confinement tensor distribution when typical free gradient waveforms are employed.
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