Abstract #3542

Evaluation of potential improvements from high permittivity pads for imaging upper extremities at 7 Tesla

Oliver Kraff¹, Andrea Lazik-Palm^1,2, Wyger M Brink³, Andreas K Bitz⁴, Mark E Ladd⁴, and Harald H Quick^1,5

¹Erwin L. Hahn Institute for MRI, University Duisburg-Essen, Essen, Germany, ²Department of Diagnostic and Interventional Radiology and Neuroradiology, University Duisburg-Essen, University Hospital, Essen, Germany, ³Radiology, Leiden University Medical Center, Leiden, Netherlands, ⁴Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, ⁵High Field and Hybrid MR Imaging, University Duisburg-Essen, University Hospital, Essen, Germany

Two sets of dielectric pads with high permittivity (CaTiO₃: 110 and BaTiO₃: 286) were evaluated for potential improvements in imaging the shoulder joint and upper arm in combination with an 8–channel transmit/receive shoulder coil at 7 Tesla. In vivo images with structural PD TSE and DREAM flip angle maps were obtained and compared to measurements without pads present. Both a fixed RF shim as well as individual RF shimming were applied. For the investigated configurations, no substantial improvements in imaging upper extremities at 7 Tesla were found when applying high permittivity dielectric pads.

This abstract and the presentation materials are available to members only; a login is required.

Join Here