Keywords: IVIM, Body, IVIM, kidney, liver
Motivation: Pseudo-diffusion volume fraction f estimated by conventional IVIM model is biased due to its TR- and TE-dependence driven by differences in compartmental relaxation times.
Goal(s): To estimate TE-independent f values in the kidney and liver at 3T.
Approach: Numerical simulations and in vivo experiments were conducted to assess the effect of relaxation times on the IVIM parameter estimates when using the conventional IVIM and extended T2-IVIM models.
Results: The IVIM-based f estimates depend on selected TE and TR values. An increase in f with increasing TE was observed in the liver, whereas no clear trend was found in the kidney.
Impact: The extended 2D T2-IVIM model efficiently minimizes the bias in f values and allows simultaneous estimation of the IVIM parameter and compartmental T2 values in the liver and kidney.
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