Spatial dependency of the gradient fields can be dynamically optimized using a gradient array coils driven by independent gradient amplifiers. Such dynamic optimization allows to maximize gradient strengths inside a target volume such as slice rather than the entire VOI. Gradient linearity error constraints can also be relaxed to obtain higher gradient strengths. Higher gradient strength can be utilized as diffusion gradients for shorter diffusion durations and TEs for fixed b-value, which increases the SNR of the DWI. Nine channel z-gradient array is used to create optimized gradient fields, which lead to 50% reduction of TE in phantom experiments.
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