Publications by authors named "Thorsten Liebig"
Summary: Reliable and integrated data are prerequisites for effective research on the recent coronavirus disease 2019 (COVID-19) pandemic. The CovidGraph project integrates and connects heterogeneous COVID-19 data in a knowledge graph, referred to as 'CovidGraph'. It provides easy access to multiple data sources through a single point of entry and enables flexible data exploration.
View Article and Find Full Text PDFMagnetic resonance imaging (MRI) at ultra-high fields (UHF), such as 7 T, provides an enhanced signal-to-noise ratio and has led to unprecedented high-resolution anatomic images and brain activation maps. Although a variety of radio frequency (RF) coil architectures have been developed for imaging at UHF conditions, they usually are specialized for small volumes of interests (VoI). So far, whole-body coil resonators are not available for commercial UHF human whole-body MRI systems.
View Article and Find Full Text PDFArticle Synopsis
- The proposed adaptive RF antenna system is designed for exciting and manipulating the TE(11) mode in high-field 7T MRI machines.
- It features composite right-/left-handed (CRLH) meta-material ring antennas that fit the MRI bore's inner surface, utilizing dispersion engineering for effective resonance at the needed Larmor frequency (298 MHz).
- The "MetaBore" scheme includes multiple pairs of these antennas, enabling targeted RF power distribution and wave reflection compensation along the MRI bore.