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Roberta Frass-Kriegl
Roberta Frass-Kriegl, MSc, PhD

Center for Medical Physics and Biomedical Engineering
Position: Research Assistant

ORCID: 0000-0002-8840-4602
T +43 1 40400 17720

Further Information


Biomedical Engineering; Computer Simulation; Electromagnetic Fields; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy

Research group(s)

Research interests

  • ultra-high field MRI and MRS
  • Multi-channel receive and transmit MR coils
  • EM simulation
  • RF measurement techniques

Techniques, methods & infrastructure

Our RF lab is equipped with three network analyzers (Agilent E5071C, Agilent E6061B, HP 3577A), oscilloscopes, soldering stations, and a variety of mechanical tools.
For 3D electromagnetic simulations of RF coils, software packages Remcom XFdtd and Agilent ADS running on a dedicated workstation with four NVIDIA Tesla C2070 GPUs are available.


  • Development of a wireless optical link for the transmission of MR signals (2018)
    Source of Funding: OeAD (Austrian agency for international mobility and cooperation in education, science and research), Scientific & Technological Cooperation
    Principal Investigator

Selected publications

  1. Frass-Kriegl, R. et al., 2018. Flexible 23-channel coil array for high-resolution magnetic resonance imaging at 3 Tesla. PLOS ONE, 13(11), p.e0206963. Available at:
  2. Hosseinnezhadian, S. et al., 2018. A flexible 12-channel transceiver array of transmission line resonators for 7T MRI. Journal of Magnetic Resonance, 296, pp.47-59. Available at:
  3. Goluch, S. et al., 2018. Proton-decoupled carbon magnetic resonance spectroscopy in human calf muscles at 7 T using a multi-channel radiofrequency coil. Scientific Reports, 8(1). Available at:
  4. Frass-Kriegl, R. et al., 2016. Multi-turn multi-gap transmission line resonators - Concept, design and first implementation at 4.7 T and 7 T. Journal of Magnetic Resonance, 273, pp.65-72. Available at:
  5. Kriegl, R. et al., 2014. Novel inductive decoupling technique for flexible transceiver arrays of monolithic transmission line resonators. Magnetic Resonance in Medicine, 73(4), pp.1669-1681. Available at: