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
2019
Conference Publication
Cerebellar cortical laminar analysis of T1 relaxation times at 7T MRI shows widespread cerebellar cortex damage in early relapsing-remitting MS patients but no correlation with clinical deficits
Galbusera, R., Parmar, K., Boillat, Y., O'Brien, K., Kappos, L., Van der Zwaag, W. and Granziera, C. (2019). Cerebellar cortical laminar analysis of T1 relaxation times at 7T MRI shows widespread cerebellar cortex damage in early relapsing-remitting MS patients but no correlation with clinical deficits. 35th Congress of the European-Committee-for-Treatment-and-Research-in-Multiple-Sclerosis (ECTRIMS) / 24th Annual Conference of Rehabilitation in MS, Stockholm, Sweden, 11-13 September 2019. London, United Kingdom: Sage Publications.
2018
Journal Article
Surface-based characteristics of the cerebellar cortex visualized with ultra-high field MRI
Boillat, Yohan, Bazin, Pierre-Louis, O'Brien, Kieran, Fartaria, Mário João, Bonnier, Guillaume, Krueger, Gunnar, Van der Zwaag, Wietske and Granziera, Cristina (2018). Surface-based characteristics of the cerebellar cortex visualized with ultra-high field MRI. NeuroImage, 172, 1-8. doi: 10.1016/j.neuroimage.2018.01.016
2018
Journal Article
Partial volume-aware assessment of multiple sclerosis lesions
Fartaria, Mário João, Todea, Alexandra, Kober, Tobias, O'brien, Kieran, Krueger, Gunnar, Meuli, Reto, Granziera, Cristina, Roche, Alexis and Bach Cuadra, Meritxell (2018). Partial volume-aware assessment of multiple sclerosis lesions. NeuroImage: Clinical, 18, 245-253. doi: 10.1016/j.nicl.2018.01.011
2018
Conference Publication
7-Tesla Cardiac MRI for ventricular and valvular quantitation in healthy volunteers
Hamilton-Craig, C., Staeb, D., O'Brien, K., Galloway, G. and Barth, M. (2018). 7-Tesla Cardiac MRI for ventricular and valvular quantitation in healthy volunteers. European Society of Cardiology Congress (ESCC 2018), Munich, Germany, 25-29 August 2018. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/eurheartj/ehy565.1163
2018
Conference Publication
Improving FLAIR SAR efficiency by predicting B1-maps at 7T from a standard localizer scan using deep convolutional neural networks
Bollmann, Steffen, Kelly, Samuel, Vegh, Viktor, Rodell, Anders, Tesiram, Yas, Barth, Markus and O'Brien, Kieran (2018). Improving FLAIR SAR efficiency by predicting B1-maps at 7T from a standard localizer scan using deep convolutional neural networks. ISMRM, Paris, France, 17-21 June 2018.
2017
Journal Article
Diffusion parameter mapping with the combined intravoxel incoherent motion and kurtosis model using artificial neural networks at 3 T
Bertleff, Marco, Domsch, Sebastian, Weingärtner, Sebastian, Zapp, Jascha, O'Brien, Kieran, Barth, Markus and Schad, Lothar R (2017). Diffusion parameter mapping with the combined intravoxel incoherent motion and kurtosis model using artificial neural networks at 3 T. NMR in biomedicine, 30 (12) e3833, 1-11. doi: 10.1002/nbm.3833
2017
Journal Article
An open 8-channel parallel transmission coil for static and dynamic 7T MRI of the knee and ankle joints at multiple postures
Jin, Jin, Weber, Ewald, Destruel, Aurelien, O’Brien, Kieran, Henin, Bassem, Engstrom, Craig and Crozier, Stuart (2017). An open 8-channel parallel transmission coil for static and dynamic 7T MRI of the knee and ankle joints at multiple postures. Magnetic Resonance in Medicine, 79 (3), 1804-1816. doi: 10.1002/mrm.26804
2017
Journal Article
An ultra-high field study of cerebellar pathology in early relapsing-remitting multiple sclerosis using MP2RAGE
Fartaria, Mario Joao, O'Brien, Kieran, Sorega, Alexandra, Bonnier, Guillaume, Roche, Alexis, Falkovskiy, Pavel, Krueger, Gunnar, Kober, Tobias, Bach Cuadra, Meritxell and Granziera, Cristina (2017). An ultra-high field study of cerebellar pathology in early relapsing-remitting multiple sclerosis using MP2RAGE. Investigative Radiology, 52 (5), 265-273. doi: 10.1097/RLI.0000000000000338
2017
Journal Article
The challenge of bias-free coil combination for quantitative susceptibility mapping at ultra-high field
Bollmann, Steffen, Robinson, Simon Daniel, O'Brien, Kieran, Vegh, Viktor, Janke, Andrew, Marstaller, Lars, Reutens, David and Barth, Markus (2017). The challenge of bias-free coil combination for quantitative susceptibility mapping at ultra-high field. Magnetic Resonance in Medicine, 79 (1), 97-107. doi: 10.1002/mrm.26644
2017
Journal Article
A time-efficient acquisition protocol for multipurpose diffusion-weighted microstructural imaging at 7 Tesla
Sepehrband, Farshid, O'Brien, Kieran and Barth, Markus (2017). A time-efficient acquisition protocol for multipurpose diffusion-weighted microstructural imaging at 7 Tesla. Magnetic Resonance in Medicine, 78 (6), 2170-2184. doi: 10.1002/mrm.26608
2017
Journal Article
Tissue microstructure features derived from anomalous diffusion measurements in magnetic resonance imaging
Yu, Qiang, Reutens, David, O'Brien, Kieran and Vegh, Viktor (2017). Tissue microstructure features derived from anomalous diffusion measurements in magnetic resonance imaging. Human Brain Mapping, 38 (2), 1068-1081. doi: 10.1002/hbm.23441
2017
Conference Publication
Validation of automated cortical and subcortical multiple sclerosis lesion detection using a single 7T MP2RAGE scan
Fartaria, M. J., Sati, P., Todea, A., O'Brien, K., Reich, D. S., Kober, T., Cuadra, M. Bach and Granziera, C. (2017). Validation of automated cortical and subcortical multiple sclerosis lesion detection using a single 7T MP2RAGE scan. 7th Joint European-Committee-for-Treatment-and-Research-in-Multiple-Sclerosis (ECTRIMS)-Americas-Committee-for-Treatment-and-Research-in-Multiple-Sclerosis (ACTRIMS), Paris, France, 25-28 October 2017. London, United Kingdom: Sage Publications.
2017
Other Outputs
MP2RAGE T1-weighted average 7T model
Bollmann, Steffen, Janke, Andrew, Marstaller, Lars, Reutens, David, O'Brien, Kieran and Barth, Markus (2017). MP2RAGE T1-weighted average 7T model. The University of Queensland. (Dataset) doi: 10.14264/uql.2017.266
2017
Other Outputs
GRE and QSM average 7T model
Bollmann, Steffen, Janke, Andrew, Marstaller, Lars, Reutens, David, O'Brien, Kieran and Barth, Markus (2017). GRE and QSM average 7T model. The University of Queensland. (Dataset) doi: 10.14264/uql.2017.178
2017
Other Outputs
Turbo Spin Echo average 7T model
Bollmann, Steffen, Janke, Andrew, Marstaller, Lars, Reutens, David, O'Brien, Kieran and Barth, Markus (2017). Turbo Spin Echo average 7T model. The University of Queensland. (Dataset) doi: 10.14264/uql.2017.267
2016
Journal Article
ECG triggering in ultra-high-field cardiovascular MRI
Staeb, Daniel, Roessler, Juergen, O'Brien, Kieran, Hamilton-Craig, Christian and Barth, Markus (2016). ECG triggering in ultra-high-field cardiovascular MRI. Tomography, 2 (3), 167-174. doi: 10.18383/j.tom.2016.00193
2016
Journal Article
Echo time-dependent quantitative susceptibility mapping contains information on tissue properties
Sood, Surabhi, Urriola, Javier, Reutens, David C., O'Brien, Kieran, Bollmann, Steffen, Barth, Markus and Vegh, Viktor (2016). Echo time-dependent quantitative susceptibility mapping contains information on tissue properties. Magnetic Resonance in Medicine, 77 (5), 1946-1958. doi: 10.1002/mrm.26281
2016
Journal Article
Pulsed arterial spin labelling at ultra-high field with a B1 +-optimised adiabatic labelling pulse
Zimmer, Fabian, O'Brien, Kieran, Bollmann, Steffen, Pfeuffer, Josef, Heberlein, Keith and Barth, Markus (2016). Pulsed arterial spin labelling at ultra-high field with a B1 +-optimised adiabatic labelling pulse. Magnetic Resonance Materials in Physics, Biology and Medicine, 29 (3), 463-473. doi: 10.1007/s10334-016-0555-2
2016
Journal Article
3D T2-weighted imaging at 7T using dynamic kT-points on single-transmit MRI systems
Eggenschwiler, Florent, O'Brien, Kieran Robert, Gallichan, Daniel, Gruetter, Rolf and Marques, Jose Pedro (2016). 3D T2-weighted imaging at 7T using dynamic kT-points on single-transmit MRI systems. Magnetic Resonance Materials in Physics, Biology and Medicine, 29 (3), 347-358. doi: 10.1007/s10334-016-0545-4
2016
Conference Publication
Echo time based influences on quantitative susceptibility mapping
Sood, Surabhi, Urriola, Javier, Reutens, David C., Bollmann, Steffen, O'Brien, Kieran, Barth, Markus and Vegh, Viktor (2016). Echo time based influences on quantitative susceptibility mapping. International Symposium on Magnetic Resonance in Medicine, Singapore, May.
Funding
Past funding
Supervision
Availability
- Dr Kieran O'Brien is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
AI in the detection and diagnosis of preclinical and early osteoarthritis
Associate Advisor
Other advisors: Associate Professor Craig Engstrom, Dr Shakes Chandra
-
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
-
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
-
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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