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
2022
Conference Publication
Quantitative susceptibility mapping as an alternative to CT for localizing gold intraprostatic fiducial markers
Stewart, Ashley Wilton, Goodwin, Jonathan, Robinson, Simon Daniel, O’Brien, Kieran, Jin, Jin, Barth, Markus and Bollmann, Stefan (2022). Quantitative susceptibility mapping as an alternative to CT for localizing gold intraprostatic fiducial markers. ISMRM 2022, London, United Kingdom, 7-12 May 2022. Concord, CA USA: International Society for Magnetic Resonance in Medicine.
2021
Conference Publication
QSMxT: a fully automated, quantitative susceptibility mapping pipeline
Stewart, Ashley, Robinson, Simon Daniel, O’Brien, Kieran, Jin, Jin, Walls, Angela, Narayanan, Aswin, Barth, Markus and Bollman, Steffen (2021). QSMxT: a fully automated, quantitative susceptibility mapping pipeline. AusIron 2021, Brisbane, QLD Australia, 29 November 2021. Brisbane, QLD Australia: QIMR Berghofer Medical Research Institute.
2021
Conference Publication
QSM as an alternative to CT for localizing gold intraprostatic fiducial markers
Wilton Stewart, Ashley, Goodwin, Jonathan, Robinson, Simon Daniel, O’Brien, Kieran, Jin, Jin, Barth, Markus and Bollmann, Steffen (2021). QSM as an alternative to CT for localizing gold intraprostatic fiducial markers. 3rd Annual Meeting of the ISMRM ANZ Chapter, 2021, Online, 22-23 November 2021. International Society for Magnetic Resonance in Medicine ANZ Chapter.
2021
Conference Publication
QSMxT:a fully automated, quantitative susceptibility mapping pipeline
Stewart, Ashley Wilton, Robinson, Simon Daniel, O’Brien, Kieran, Jin, Jin, Walls, Angela, Narayanan, Aswin, Barth, Markus and Bollmann, Steffen (2021). QSMxT:a fully automated, quantitative susceptibility mapping pipeline. 3rd Annual Meeting of the ISMRM ANZ Chapter, 2021, Online, 22-23 November. International Society for Magnetic Resonance in Medicine ANZ Chapter.
2021
Journal Article
Magnetic resonance fingerprinting residual signals can disassociate human grey matter regions
Moinian, Shahrzad, Vegh, Viktor, O’Brien, Kieran and Reutens, David (2021). Magnetic resonance fingerprinting residual signals can disassociate human grey matter regions. Brain Structure and Function, 227 (1), 313-329. doi: 10.1007/s00429-021-02402-9
2021
Journal Article
QSMxT: Robust masking and artifact reduction for quantitative susceptibility mapping
Stewart, Ashley Wilton, Robinson, Simon Daniel, O’Brien, Kieran, Jin, Jin, Widhalm, Georg, Hangel, Gilbert, Walls, Angela, Goodwin, Jonathan, Eckstein, Korbinian, Tourell, Monique, Morgan, Catherine, Narayanan, Aswin, Barth, Markus and Bollmann, Steffen (2021). QSMxT: Robust masking and artifact reduction for quantitative susceptibility mapping. Magnetic Resonance in Medicine, 87 (3), 1289-1300. doi: 10.1002/mrm.29048
2021
Conference Publication
Submillimeter, aub-minute quantitative susceptibility mapping using a multi-shot 3D-EPI with 2D CAIPIRINHA acceleration
Tourell, Monique, Jin, Jin, Stewart, Ashley, Bollmann, Saskia, Bollmann, Steffen, Robinson, Simon, O'Brien, Kieran and Barth, Markus (2021). Submillimeter, aub-minute quantitative susceptibility mapping using a multi-shot 3D-EPI with 2D CAIPIRINHA acceleration. ISMRM 2021, Online, 15-20 May 2021. Concord, CA United States: International Society for Magnetic Resonance in Medicine.
2021
Conference Publication
QSMxT - a cross-platform, flexible, lightweight, and scalable processing pipeline for quantitative susceptibility mapping
Stewart, Ashley, Robinson, Simon Daniel, O'Brien, Kieran, Jin, Jin, Walls, Angela, Narayanan, Aswin, Barth, Markus and Bollmann, Steffen (2021). QSMxT - a cross-platform, flexible, lightweight, and scalable processing pipeline for quantitative susceptibility mapping. ISMRM 2021, Online, 15-21 May 2021. Concord, CA USA: International Society for Magnetic Resonance in Medicine.
2021
Conference Publication
Robust masking techniques for multi-echo quantitative susceptibility mapping
Stewart, Ashley, Robinson, Simon Daniel, O'Brien, Kieran, Jin, Jin, Widhalm, Georg, Hangel, Gilbert, Walls, Angela, Goodwin, Jonathan, Eckstein, Korbinian, Barth, Markus and Bollmann, Steffen (2021). Robust masking techniques for multi-echo quantitative susceptibility mapping. ISMRM 2021, Online, 15-20 May 2021. Concord, CA United States: International Society for Magnetic Resonance in Medicine.
2021
Journal Article
Improving FLAIR SAR efficiency at 7T by adaptive tailoring of adiabatic pulse power through deep learning estimation
Abbasi‐Rad, Shahrokh, O’Brien, Kieran, Kelly, Samuel, Vegh, Viktor, Rodell, Anders, Tesiram, Yasvir, Jin, Jin, Barth, Markus and Bollmann, Steffen (2021). Improving FLAIR SAR efficiency at 7T by adaptive tailoring of adiabatic pulse power through deep learning estimation. Magnetic Resonance in Medicine, 85 (5), 2462-2476. doi: 10.1002/mrm.28590
2020
Journal Article
Simultaneous BOLD-fMRI and constant infusion FDG-PET data of the resting human brain
Jamadar, Sharna D., Ward, Phillip G. D., Close, Thomas G., Fornito, Alex, Premaratne, Malin, O’Brien, Kieran, Stäb, Daniel, Chen, Zhaolin, Shah, N. Jon and Egan, Gary F. (2020). Simultaneous BOLD-fMRI and constant infusion FDG-PET data of the resting human brain. Scientific Data, 7 (1) 363, 363. doi: 10.1038/s41597-020-00699-5
2020
Conference Publication
Quantitative susceptibility mapping with 1mm isotropic resolution in 2 minutes using compressed sensing
Joseph, Arun, Hilbert, Tom, Bonanno, Gabriele, Mussard, Emilie, Forman, Christoph, Stewart, Ashley, O'Brien, Kieran and Kober, Tobias (2020). Quantitative susceptibility mapping with 1mm isotropic resolution in 2 minutes using compressed sensing. 2020 ISMRM & SMRT Virtual Conference & Exhibition, Online, 8-14 August 2020. Concord, CA United States: International Society for Magnetic Resonance in Medicine.
2020
Conference Publication
Clinical viable QSM using accelerated, segmented 3D EPI with inline, automated QSM post-processing
Tourell, Monique, Stewart, Ashley, Jin, Jin, Patil, Sunil, O'Brien, Kieran, Robinson, Simon and Barth, Markus (2020). Clinical viable QSM using accelerated, segmented 3D EPI with inline, automated QSM post-processing. 2020 ISMRM & SMRT Virtual Conference & Exhibition, Online, 8-14 August 2020. Concord, CA United States: International Society for Magnetic Resonance in Medicine.
2019
Journal Article
DeepQSM - using deep learning to solve the dipole inversion for quantitative susceptibility mapping
Bollmann, Steffen, Rasmussen, Kasper Gade Bøtker, Kristensen, Mads, Blendal, Rasmus Guldhammer, Østergaard, Lasse Riis, Plocharski, Maciej, O'Brien, Kieran, Langkammer, Christian, Janke, Andrew and Barth, Markus (2019). DeepQSM - using deep learning to solve the dipole inversion for quantitative susceptibility mapping. NeuroImage, 195, 373-383. doi: 10.1016/j.neuroimage.2019.03.060
2019
Journal Article
Automated detection and segmentation of multiple sclerosis lesions using ultra-high-field MP2RAGE
Fartaria, Mário João, Sati, Pascal, Todea, Alexandra, Radue, Ernst-Wilhelm, Rahmanzadeh, Reza, O'Brien, Kieran, Reich, Daniel S., Bach Cuadra, Meritxell, Kober, Tobias and Granziera, Cristina (2019). Automated detection and segmentation of multiple sclerosis lesions using ultra-high-field MP2RAGE. Investigative Radiology, 54 (6), 356-364. doi: 10.1097/RLI.0000000000000551
2019
Journal Article
A numerical and experimental study of RF shimming in the presence of hip prostheses using adaptive SAR at 3 T
Destruel, Aurelien, Fuentes, Miguel, Weber, Ewald, O'Brien, Kieran, Jin, Jin, Liu, Feng, Barth, Markus and Crozier, Stuart (2019). A numerical and experimental study of RF shimming in the presence of hip prostheses using adaptive SAR at 3 T. Magnetic Resonance in Medicine, 81 (6), 3826-3839. doi: 10.1002/mrm.27688
2019
Conference Publication
Quantitative susceptibility mapping for routine clinical use – an inline automated QSM reconstruction pipeline
Stewart, Ashley, O'Brien, Kieran, Kim, Jinsuh, Maréchal, Bénédicte, Nasrallah, Fatima, Kean, Michael, Barth, Markus and Bollmann, Steffen (2019). Quantitative susceptibility mapping for routine clinical use – an inline automated QSM reconstruction pipeline. ISMRM 2019, Montreal, Canada, 11-16 May 2019. Concord, CA United States: International Society for Magnetic Resonance in Medicine.
2019
Journal Article
SHARQnet – Sophisticated harmonic artifact reduction in quantitative susceptibility mapping using a deep convolutional neural network
Bollmann, Steffen, Kristensen, Matilde Holm, Larsen, Morten Skaarup, Olsen, Mathias Vassard, Pedersen, Mads Jozwiak, Østergaard, Lasse Riis, O’Brien, Kieran, Langkammer, Christian, Fazlollahi, Amir and Barth, Markus (2019). SHARQnet – Sophisticated harmonic artifact reduction in quantitative susceptibility mapping using a deep convolutional neural network. Zeitschrift für Medizinische Physik, 29 (2), 139-149. doi: 10.1016/j.zemedi.2019.01.001
2019
Journal Article
Cardiac magnetic resonance imaging at 7 Tesla
Stäb, Daniel, Al Najjar, Aiman, O'Brien, Kieran, Strugnell, Wendy, Richer, Jonathan, Rieger, Jan, Niendorf, Thoralf and Barth, Markus (2019). Cardiac magnetic resonance imaging at 7 Tesla. Journal of Visualized Experiments, 2019 (143) e55853. doi: 10.3791/55853
2019
Journal Article
Adaptive SAR mass-averaging framework to improve predictions of local RF heating near a hip implant for parallel transmit at 7 T
Destruel, Aurelien, O'Brien, Kieran, Jin, Jin, Liu, Feng, Barth, Markus and Crozier, Stuart (2019). Adaptive SAR mass-averaging framework to improve predictions of local RF heating near a hip implant for parallel transmit at 7 T. Magnetic Resonance in Medicine, 81 (1), 615-627. doi: 10.1002/mrm.27379
Funding
Past funding
Supervision
Availability
- Dr Kieran O'Brien is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
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
-
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
-
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
For media enquiries about Dr Kieran O'Brien's areas of expertise, story ideas and help finding experts, contact our Media team: