Mark Chiew, PhD
University Research Lecturer
Royal Academy of Engineering Research Fellow
Wellcome Centre for Integrative Neuroimaging
Nuffield Department of Clinical Neurosciences
University of Oxford
Contact
Wellcome Trust Centre for Integrative Neuroimaging (FMRIB)
John Radcliffe Hospital
OX3 9DU
Oxford
United Kingdom
mark.chiew@ndcn.ox.ac.uk
+44 (0) 1865 611287
Research Summary
My research focuses on the development of data acquisition and image reconstruction techniques for magnetic resonance imaging, mostly in the brain, at 3T and 7T magnetic field strengths. My group works on pulse sequences and k-space sampling trajectories for functional MRI (fMRI), and methods for MR image reconstruction of highly accelerated data using sparse, low-rank and other spatio-temporal constraints. These techniques can be used to reduce acquisition times, improve spatial and/or temporal resolution, or increase data quality. While my main area of interest is fMRI, I am also involved in angiography and perfusion imaging using ASL, spectroscopic imaging, vocal-tract real-time MRI, and multi-modal imaging (simultaneous EEG+fMRI).
Recent Publications
- Xia P, Chiew M, Zhou X, Thomas MA, Dydak U, Emir UE, “Density-Weighted Concentric Ring Trajectory using simultaneous multi-band acceleration: 3D Metabolite-cycled Magnetic Resonance Spectroscopy Imaging at 3 T”, bioRxiv 2019; 628594
- Schauman SS, Chiew M, Okell TW, “Highly Accelerated Vessel-Selective Arterial Spin Labelling Angiography using Sparsity and Smoothness Constraints”, Magnetic Resonance in Medicine, 2020; 83:892-905
- Chiew M, Miller KL, “Improved Statistical Efficiency of Simultaneous Multi-Slice fMRI by Reconstruction with Spatially Adaptive Temporal Smoothing”, NeuroImage 2019; 203:116165
- O’Brien CF, Okell TW, Chiew M, Jezzard P “Volume-Localized Measurement of Oxygen Extraction Fraction in the Brain using Magnetic Resonance Imaging”, Magnetic Resonance in Medicine 2019; 82:1412-1423
- Steel A, Chiew M, Jezzard P, Voets N, Plaha P, Thomas MA, Stagg C, Emir UE, “Metabolite-cycled density-weighted concentric rings k-space trajectory (DW-CRT) enables 1H magnetic resonance spectroscopic imaging at 3-Tesla”, Scientific Reports 2018; 8:7792
Funding Sources
- Royal Academy of Engineering Research Fellowship (RF201617\16\23)
- Engineering and Physical Sciences Research Council (EP/T013133/1)