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Joseph Woods
DPhil
Postdoctoral Researcher in Ultra-High Field MRI
I am a postdoctoral researcher in the Physics Group at the Wellcome Centre for Integrative Neuroimaging (WIN), University of Oxford, working with Professor Thomas Okell.
The current focus of my research is the technical and methodological development of Arterial Spin Labelling (ASL) MRI at Ultra-High Field, specifically 7T.
Previously, I worked at the Center for Functional MRI at the University of California San Diego with Professors Divya Bolar and Eric Wong developing velocity-selective ASL based techniques. Before that, I completed my DPhil at the WIN under the supervision of Professors Michael Chappell and Thomas Okell.
ASL MRI is a non-invasive technique that can be used for both quantitative perfusion imaging and angiography. Since ASL does not use ionising radiation or an injected contrast agent, it can be safely used for longitudinal monitoring of patients and for research scans. However, the signal we are measuring is SNR (signal-to-noise-ratio) limited, so there is an urgent need to develop methods to boost this signal to fully exploit this promising technique.
Perfusion Imaging
Recent publications
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Achieving robust labeling above the circle of Willis with vessel-encoded arterial spin labeling.
Journal article
Li H. et al, (2025), Magn Reson Med
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SNR-efficient whole-brain pseudo-continuous arterial spin labeling perfusion imaging at 7 T.
Journal article
Woods JG. et al, (2025), Magn Reson Med
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Combined Angiographic, Structural and Perfusion Radial Imaging using Arterial Spin Labeling
Preprint
Okell TW. et al, (2025)
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Ultra-high temporal resolution 4D angiography using arterial spin labeling with subspace reconstruction.
Journal article
Shen Q. et al, (2025), Magn Reson Med, 93, 1924 - 1941
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SNR-Efficient Whole-Brain Pseudo-Continuous Arterial Spin Labeling Perfusion Imaging at 7 Tesla
Preprint
Woods JG. et al, (2024)