Echo planar spectroscopic imaging (EPSI) can be used for fast spectroscopic imaging, however, the gradient hardware greatly limits the spectral bandwidth. Moreover, the associated fast switching gradient produces uncomfortable levels of acoustic noise. In this work, we show the feasibility of spectroscopic imaging at high spectral bandwidth using a silent gradient axis driven at 20 kHz and a segmented EPSI sequence. We report results on the silent segmented EPSI compared to the conventional EPSI approach on a phantom containing NAA, creatine and glutamate and show the first silent and high bandwidth in-vivo measurements.
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