Overview
Background
Dr Kieran O'Brien is a Siemens Healthcare Adjunct Research Fellow at the Centre for Advanced Imaging. He completed his Bachelor of Biomedical Engineering (Honours, 2005) and PhD in Bioengineering from the University of Auckland in 2009. After being awarded his PhD Kieran worked in Postdoctoral positions at the University of Auckland and the University of Geneva Centre d'Imagerie BioMédicale before joining Siemens as a Senior Scientist in 2013.
His research interests are include improving RF pulses at high field (≥3T) to overcome imaging inhomogeneity and B1 limitations for Neuro, MSK and Cardiac applications; bi-exponential diffusion imaging; and, phase imaging for quantitative susceptibility mapping and measuring motion.
Availability
- Dr Kieran O'Brien is:
- Available for supervision
Fields of research
Research impacts
Kieran has developed expertise as a sequence and image reconstruction software programmer for Siemens MR Scanners; developing, implementing and validating new advanced image acquisition and reconstruction techniques that overcome clinical and physical problems into commercial products. He has been responsible for leading the management of sequence projects to translate basic research from the lab on to Siemens scanners as software products that can be distributed to researchers worldwide. Of particular note is his involvement in the upgrade and development of the software for the new 7T Terra clinical system.
Works
Search Professor Kieran O'Brien’s works on UQ eSpace
2012
Journal Article
A multi-center study: intra-scan and inter-scan variability of diffusion spectrum imaging
Lemkaddem, A., Daducci, A., Vulliemoz, S., O'Brien, K., Lazeyras, F., Hauf, M., Wiest, R., Meuli, R., Seeck, M., Krueger, G. and Thiran, J.-P. (2012). A multi-center study: intra-scan and inter-scan variability of diffusion spectrum imaging. NeuroImage, 62 (1), 87-94. doi: 10.1016/j.neuroimage.2012.04.045
2012
Book Chapter
Imaging of Very Fast Flows with PC-UTE
O'Brien, Kieran R. and Robson, Matthew D. (2012). Imaging of Very Fast Flows with PC-UTE. Encyclopedia of Magnetic Resonance. (pp. 521-528) Chichester, United Kingdom: John Wiley & Sons. doi: 10.1002/9780470034590.emrstm1248
2009
Journal Article
Aortic valve stenotic area calculation from phase contrast cardiovascular magnetic resonance: the importance of short echo time
O'Brien, Kieran R., Gabriel, Ruvin S., Greiser, Andreas, Cowan, Brett R., Young, Alistair A. and Kerr, Andrew J. (2009). Aortic valve stenotic area calculation from phase contrast cardiovascular magnetic resonance: the importance of short echo time. Journal of Cardiovascular Magnetic Resonance, 11 (1) 49, 49. doi: 10.1186/1532-429X-11-49
2009
Journal Article
Phase contrast ultrashort TE: a more reliable technique for measurement of high-velocity turbulent stenotic jets
O'Brien, Kieran R., Myerson, Saul G., Cowan, Brett R., Young, Alistair A. and Robson, Matthew D. (2009). Phase contrast ultrashort TE: a more reliable technique for measurement of high-velocity turbulent stenotic jets. Magnetic Resonance in Medicine, 62 (3), 626-636. doi: 10.1002/mrm.22051
2008
Journal Article
MRI phase contrast velocity and flow errors in turbulent stenotic jets
O'Brien, Kieran R., Cowan, Brett R., Jain, Manali, Stewart , Ralph A. H., Kerr, Andrew J. and Young, Alistair A. (2008). MRI phase contrast velocity and flow errors in turbulent stenotic jets. Journal of Magnetic Resonance Imaging, 28 (1), 210-218. doi: 10.1002/jmri.21395
2008
Conference Publication
Phase contrast planimetry of valve area in aortic stenosis
O'Brien, Kieran R., Gabriel, Ruvin, Kerr, Andrew, Cowan, Brett and Young, Alistair (2008). Phase contrast planimetry of valve area in aortic stenosis. 11th Annual SCMR Scientific Sessions, Los Angeles, CA United States, 1-3 February 2008. London, United Kingdom: Springer. doi: 10.1186/1532-429x-10-s1-a365
2008
Journal Article
Higher order corrections for background phase in flow imaging
O'Brien, Kieran R., Gabriel, Ruvin, Kerr, Andrew, Cowan, Brett and Young, Alistair (2008). Higher order corrections for background phase in flow imaging. Journal of Cardiovascular Magnetic Resonance, 10 (Suppl 1) A364, A364. doi: 10.1186/1532-429x-10-s1-a364
Funding
Past funding
Supervision
Availability
- Dr Kieran O'Brien is:
- Available for supervision
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Supervision history
Current supervision
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Doctor Philosophy
AI in the detection and diagnosis of preclinical and early osteoarthritis
Associate Advisor
Other advisors: Associate Professor Craig Engstrom, Dr Shakes Chandra
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Doctor Philosophy
Evaluating Magnetic Resonance Spectroscopy and Spectroscopic Imaging Techniques in Motor Neuron Disease at 3T and 7T
Associate Advisor
Other advisors: Dr Thomas Shaw, Professor Markus Barth
Completed supervision
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2025
Doctor Philosophy
Towards QSM validation: reference measurement, doping materials, and anthropomorphic phantoms
Associate Advisor
Other advisors: Dr Monique Tourell, Professor Markus Barth
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2023
Doctor Philosophy
Automated Quantitative Susceptibility Mapping for Clinical Applications
Associate Advisor
Other advisors: Professor Markus Barth, Dr Monique Tourell, Dr Steffen Bollmann
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2021
Doctor Philosophy
Sequence Development to Improve Image Quality for T2- and Diffusion Weighted Imaging at 7T
Associate Advisor
Other advisors: Dr Steffen Bollmann, Professor Markus Barth
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2019
Doctor Philosophy
Radiofrequency safety and shimming near metal hip prostheses at high and ultra-high field MRI
Associate Advisor
Other advisors: Professor Feng Liu, Professor Markus Barth, Emeritus Professor Stuart Crozier
Media
Enquiries
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