Meeting Banner
Abstract #5002

A 9-channel 1H, 3-channel 31P RF coil for metabolic calf muscle studies at 7 T

Veronika Cap1, Martin Meyerspeer1, Vasco Rafael Rocha dos Santos1, Onisim Soanca1, Elmar Laistler1, and Roberta Frass-Kriegl1
1High Field MR Center, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria

Synopsis

Keywords: RF Arrays & Systems, Muscle

Motivation: Combined 1H/31P MRS allows the simultaneous investigation of oxidative and glycolytic metabolic processes in exercising muscle. Insufficient proton performance of typical double-tuned radiofrequency coils can be a limitation.

Goal(s): To develop a 1H/31P calf coil with excellent proton performance and minimal compromises on 31P SNR.

Approach: The proposed design combines three ¹H transceive dipoles, six ¹H receive-only loops and three 31P transceive loops.

Results: The developed coil showed 3.3- and 1.3-times higher 1H SNR than double- and single-tuned reference coils, improved transmit performance and enables parallel imaging. The 31P SNR was 26 % below the reference, but with a larger field of view.

Impact: The developed coil will enable advanced metabolic calf muscle studies, as it combines excellent 1H performance with the possibility of acquiring high-quality 31P spectra. Combining dipoles and loops is a powerful approach for building high-density coil arrays at ultra-high field.

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.

Keywords