Abstract #0795

QSM of the head-and-neck at 7T using simultaneous fat-water imaging with SMURF

Beata Bachrata^1,2, Korbinian Eckstein¹, Siegfried Trattnig^1,2, and Simon Daniel Robinson^1,3,4

¹High Field MR Centre, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria, ²Christian Doppler Laboratory for Clinical Molecular MR Imaging, Vienna, Austria, ³Centre of Advanced Imaging, University of Queensland, Brisbane, Australia, ⁴Department of Neurology, Medical University of Graz, Graz, Austria

We address the challenges of QSM in regions outside of the brain which contain disconnected structures - leading to difficulty in masking - and significant amounts of fat with chemical shift and relaxation differences relative to water - leading to errors in susceptibility estimates. We propose a mask generation approach based on signal phase and show that the errors in susceptibility estimates can be eliminated using simultaneous fat-water imaging with SMURF. Using multi-echo acquisition and inverse-variance-weighted echo combination, we generate high CNR, chemical shift and relaxation effects-free susceptibility maps of the head-and-neck at 7T.

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.

Click here for more information on becoming a member.