Abstract #3052

Fast-Sweep Frequency-Modulated SSFP: Boosting Sensitivity for 3D Joint T1/T2 Mapping

Volkert Roeloffs¹, Nick Scholand^1,2, and Martin Uecker^1,2,3

¹Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Goettingen, Germany, ²DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany, Goettingen, Germany, ³Campus Institute Data Science (CIDAS), University of Göttingen, Göttingen, Germany, Goettingen, Germany

Sensitivity to T1 and T2 in frequency-modulated SSFP sequences can be increased by choosing a higher modulation speed without prolonging the repetition time. In this work, we assess the boost in sensitivity by Cramér-Rao-bound analysis, combine the sequence with stack-of-stars sampling and subspace-constrained reconstruction, and demonstrate joint T1/T2/B1/off-resonance mapping in phantom and in vivo study. The results render fast-sweep frequency-modulated SSFP an excellent candidate for comprehensive 3D multi-parametric mapping.

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.