Biomedical Engineering
School of ITEE

Mr Ewald Weber

Contact details

School of ITEE, General Purpose South [78]
Tel: +61 7  3366 9586
Fax: +61 7  3365 4999
ewald@itee.uq.edu.au 
Webpage

Biography

Ewald Weber is a Senior Research Officer with the University of Queensland, Biomedical Engineering Group and has over twenty years of experience in the research and development environment of medical imaging equipment. He has designed a large variety of multi-functional MRI coils, i.e. suitable for simultaneous observing of different nuclei, applicable for imaging, high resolution spectroscopy of organs or functional-imaging of the human brain. Ewald’s longterm and research-focused involvement in the MRI industry and his novel hardware led to significant technical progress in RFcoil technology. This is evidenced by his patented IP, many of which has been adopted or is ready to be implemented by the MRI industry.

Research Interests
  • Design and developmment of MRI harware
  • RF coil technology
Key Publications
  • Trakic, B. K. Li, E. Weber, F. Liu, S. Wilson and S. Crozier, A mechanically rotating transceive system and method for applications in magnetic resonance, International Society for Magnetic Resonance in Medicine - 17th Scientific Meeting & Exhibition, Honolulu (Hawaii), April 2009. First demonstration of successful MR image formations using a single mechanically, fast rotating, RF transceive coil. This is a totally new way of acquiring MR images.
  • E. Weber, B.K. Li, F. Liu and S. Crozier, A ultra-high field multi-element transceive volume array for small animal MRI, 30th Annual IEEE Engineering in Medicine and Biological Society, vol.30, Vancouver (Canada), August 2008. Pioneering work in the development of RF coil systems for small animal imaging and pre-clinical applications. High-field clinical multichannel transceive coils will also benefit from this research.
  • E. Weber, B.K. Li, F. Liu and S. Crozier, A fast parallel imaging rotary phased array head coil with improved sensitivity profile deep in the centre of the human brain, 29th Annual IEEE Engineering in Medicine and Biological Society, vol. 29, Lyon (France), August 2007. First implementation of the rotary RF array innovation for tailoring of sensitivity profiles in distal anatomical regions, contributing to the improvement of image quality at high operating frequency.
  • Bing Keong Li, Feng Liu, Ewald Weber, Stuart Crozier. Hybrid Numerical Techniques for the Modelling of RadioFrequency Coils in Magnetic Resonance Imaging. NMR in Biomedicine, Vol. 22(9), pp. 937- 951, 2009. [Impact Factor: 4.329]. Essential demonstration of an improved hybrid Method-of-Moments (MOM) – Finite- Difference Time-Domain (FDTD) method for modelling of RF problems in MRI.
  • Y. Li, E. Weber, B. Li, F. Liu, J. Schneider, S. Ohrel, S. Junge, P. Ullmann, M. Wick, and S. Crozier, A Stripline-like Coil Element Structure for High Field Phased Array Coils and its Application for a 8-channe 9.4T Small Animal Transceive Array, International Society for Magnetic Resonance in Medicine, 17th scientific meeting and exhibition, Stockholm, Sweden, May, 2010. Most recent development of our patented angularly oriented coil-element structure, general application in high-density phased array coils and potential to free up space for hybrid designs, i.e. MRI-PET systems.
  • A. Trakic, H. Wang, E. Weber, B.K. Li, M. Poole, F. Liu, S. Crozier, Image reconstructions with the rotating RF coil, Journal of Magnetic Resonance, vol. 201, no.2, pp. 186-198, 2009. First analytical and experimental demonstration of MR image formations using a single RF transceive coil that rotates about the subject. Its new degrees of freedom opens the way for novel imaging methods. [Impact factor: 2.438]
  • Ewald Weber, Bing Keong Li, Feng Liu, Yu Li, Peter Ullmann, Hector Sanchez and Stuart Crozier. A Novel 8- Channel Transceive Volume-Array for a 9.4T Animal Scanner. In Proceedings of the International Society of Magnetic Resonance in Medicine, Toronto, pp. 151, 2008. This work combines several new design methods and IP generated in our group that aids the research of bio-markers, drug development, stem-cell research and other biomedical disciplines.
  • H. Wang, A. Trakic, F. Liu, B.K. Li, E. Weber and S. Crozier, Parallel Solvers for Finite-Difference Modelling of Large-Scale, High-Resolution Electromagnetic Problems in MRI, International Journal of Antennas and Propagation, vol. 2008, Article ID 259703, 12 pages, 2008. doi:10.1155/2008/259703. The most comprehensive parallel computing technique for large-scale, high-frequency MRI problems. A foundation for the development of the parallel framework for accelerated RF field/ temperature evaluation and optimisation.
  • Y. Li, F. Liu, J. Jin, E. Weber, B. Li, H. Wang, and S. Crozier, A modelling study of a hybrid loop-strip coil structure for multichannel transceive breast array coil, International Society for Magnetic Resonance in Medicine, 17th scientific meeting and exhibition, Stockholm, Sweden, May, 2010. The original work presented in this study can ease space constrains in modern multi-channel transmit systems for high-frequency MRI, useful in the design of multi-modality clinical scanners.
  • Y. Li, F. Liu, E. Weber, and S. Crozier, Inverse design of breast array coil for MRI, International Society for Magnetic Resonance in Medicine - 17th Scientific Meeting & Exhibition, Honolulu (Hawaii), April 2009. First demonstration of stream-function-based breast coil inverse design. This work contributes to the future development of organ-specific RF coil technology.

 

Ewald Weber
RF Engineer