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Tracking head movement inside an MR scanner using electromagnetic coils (2024)
Journal Article
Bhuiyan, E. H., Chowdhury, M. E., & Glover, P. M. (2024). Tracking head movement inside an MR scanner using electromagnetic coils. Heliyon, 10(13), Article e32199. https://doi.org/10.1016/j.heliyon.2024.e32199

Prospective motion corrections in brain imaging for MRI are fairly challenging. Monitoring involuntary head movement inside MR scanner is crucial for prospective motion correction. This initial study delves into utilizing simulations to track the hea... Read More about Tracking head movement inside an MR scanner using electromagnetic coils.

A novel approach to monitor head movement inside an MR scanner using voltages induced in coils by time-varying gradients (2023)
Journal Article
Bhuiyan, E. H., Chowdhury, M. E., & Glover, P. M. (2023). A novel approach to monitor head movement inside an MR scanner using voltages induced in coils by time-varying gradients. IEEE Access, 11, 107004-107018. https://doi.org/10.1109/access.2023.3318171

To determine head pose within an MR scanner using measurements of gradient-induced voltage from a multiple coil. A practical implementation of this approach would involve measuring the position-sensitive voltages induced by the imaging gradients rath... Read More about A novel approach to monitor head movement inside an MR scanner using voltages induced in coils by time-varying gradients.

Naturalistic Hyperscanning with Wearable Magnetoencephalography (2023)
Journal Article
Holmes, N., Rea, M., Hill, R. M., Boto, E., Leggett, J., Edwards, L. J., …Bowtell, R. (2023). Naturalistic Hyperscanning with Wearable Magnetoencephalography. Sensors, 23(12), Article 5454. https://doi.org/10.3390/s23125454

The evolution of human cognitive function is reliant on complex social interactions which form the behavioural foundation of who we are. These social capacities are subject to dramatic change in disease and injury; yet their supporting neural substra... Read More about Naturalistic Hyperscanning with Wearable Magnetoencephalography.

A ‘Dynamic Kibble’ mass balance for the undergraduate physics teaching laboratory (2022)
Journal Article
Glover, P. M., Milner, C., Rambabu, A., & Varley, D. (2023). A ‘Dynamic Kibble’ mass balance for the undergraduate physics teaching laboratory. European Journal of Physics, 44(1), Article 015201. https://doi.org/10.1088/1361-6404/ac9ef0

Originally envisaged in 1975 to realise the SI unit of electrical current, the Ampere, the Kibble balance has since developed into a powerhouse of modern scientific measurement. By combining theoretical simplicity with precision of measurement, it ha... Read More about A ‘Dynamic Kibble’ mass balance for the undergraduate physics teaching laboratory.

Improved Dynamic Contrast-Enhanced MRI Using Low Rank with Joint Sparsity (2022)
Journal Article
Zhang, J., Najeeb, F., Wang, X., Xu, P., Omer, H., Zheng, J., …Wang, C. (2022). Improved Dynamic Contrast-Enhanced MRI Using Low Rank with Joint Sparsity. IEEE Access, 10, 121193-121203. https://doi.org/10.1109/access.2022.3222313

This work presents a free-breathing dynamic contrast-enhanced (DCE) MRI reconstruction method called low-rank plus sparse (L+S) with joint sparsity. The proposed method improved dynamic contrast performance by integrating an additional temporal Fast... Read More about Improved Dynamic Contrast-Enhanced MRI Using Low Rank with Joint Sparsity.

A lightweight magnetically shielded room with active shielding (2022)
Journal Article
Holmes, N., Rea, M., Chalmers, J., Leggett, J., Edwards, L. J., Nell, P., …Bowtell, R. (2022). A lightweight magnetically shielded room with active shielding. Scientific Reports, 12, Article 13561. https://doi.org/10.1038/s41598-022-17346-1

Magnetically shielded rooms (MSRs) use multiple layers of materials such as MuMetal to screen external magnetic fields that would otherwise interfere with high precision magnetic field measurements such as magnetoencephalography (MEG). Optically pump... Read More about A lightweight magnetically shielded room with active shielding.

Qualitative and quantitative assessment of magnetic vestibular stimulation in humans (2020)
Journal Article
Dewey, R. S., Gomez, R., Degg, C., Baguley, D. M., & Glover, P. (2020). Qualitative and quantitative assessment of magnetic vestibular stimulation in humans. Journal of Vestibular Research, 30(6), 353-361. https://doi.org/10.3233/VES-201538

The sensation of phantom motion or exhibition of bodily sway is often reported in the proximity of an MR scanner. It is proposed that the magnetic field stimulates the vestibular system. There are a number of possible mechanisms responsible, and the... Read More about Qualitative and quantitative assessment of magnetic vestibular stimulation in humans.

An intra-neural microstimulation system for ultra-high field magnetic resonance imaging and magnetoencephalography (2017)
Journal Article
Glover, P. M., Watkins, R. H., O’Neill, G. C., Ackerley, R. M., Sánchez-Panchuelo, R.-M., McGlone, F., Brookes, M. J., Wessberg, J., & Francis, S. T. (2017). An intra-neural microstimulation system for ultra-high field magnetic resonance imaging and magnetoencephalography. Journal of Neuroscience Methods, 290, 69-78. https://doi.org/10.1016/j.jneumeth.2017.07.016

Background Intra-neural microstimulation (INMS) is a technique that allows the precise delivery of low-current electrical pulses into human peripheral nerves. Single unit INMS can be used to stimulate individual afferent nerve fibres during micron... Read More about An intra-neural microstimulation system for ultra-high field magnetic resonance imaging and magnetoencephalography.

Experimental measurement of dynamic concentration of nanofluid in laminar flow (2017)
Journal Article
Hong, J., Liu, S., Yan, Y., & Glover, P. (2017). Experimental measurement of dynamic concentration of nanofluid in laminar flow. Experimental Thermal and Fluid Science, 88, 483-489. https://doi.org/10.1016/j.expthermflusci.2017.06.022

Nanofluid is thought to have a potential enhancement in heat transfer behaviour of fluid. The nanoparticle concentration in nanofluid is one of the most important factors that affect the nanofluid behaviour. The static concentration was applied in th... Read More about Experimental measurement of dynamic concentration of nanofluid in laminar flow.

A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers (2017)
Journal Article
Boto, E., Meyer, S. S., Shah, V., Alem, O., Knappe, S., Kruger, P., …Brookes, M. J. (2017). A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers. NeuroImage, 149, 404-414. https://doi.org/10.1016/j.neuroimage.2017.01.034

© 2017 The Authors Advances in the field of quantum sensing mean that magnetic field sensors, operating at room temperature, are now able to achieve sensitivity similar to that of cryogenically cooled devices (SQUIDs). This means that room temperatur... Read More about A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers.

Magnetic field-induced vertigo in the MRI environment (2015)
Journal Article
Glover, P. (2015). Magnetic field-induced vertigo in the MRI environment. Current Radiology Reports, 3(8), Article 29. https://doi.org/10.1007/s40134-015-0112-1

This review discusses the theory behind, and the experimental evidence for, the perception of vertigo in a high magnetic field found in a magnetic resonance imaging (MRI) environment. Recent experiments have shown that there is an eye nystagmus respo... Read More about Magnetic field-induced vertigo in the MRI environment.

A dynamic model of the eye nystagmus response to high magnetic fields (2014)
Journal Article
Glover, P. M., Li, Y., Antunes, A., Mian, O. S., & Day, B. L. (2014). A dynamic model of the eye nystagmus response to high magnetic fields. Physics in Medicine and Biology, 59(3), https://doi.org/10.1088/0031-9155/59/3/631

It was recently shown that high magnetic fields evoke nystagmus in human subjects with functioning vestibular systems. The proposed mechanism involves interaction between ionic currents in the endolymph of the vestibular labyrinth and the static magn... Read More about A dynamic model of the eye nystagmus response to high magnetic fields.

Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI (2013)
Journal Article
Chowdhury, M. E., Mullinger, K. J., Glover, P., & Bowtell, R. W. (2014). Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI. NeuroImage, 84, 307-319. https://doi.org/10.1016/j.neuroimage.2013.08.039

Large artefacts compromise EEG data quality during simultaneous fMRI. These artefact voltages pose heavy demands on the bandwidth and dynamic range of EEG amplifiers and mean that even small fractional variations in the artefact voltages give rise to... Read More about Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI.

Magnetic field effects on the vestibular system: calculation of the pressure on the cupula due to ionic current-induced Lorentz force (2012)
Journal Article
Antunes, A., Glover, P., Li, Y., Mian, O., & Day, B. (2012). Magnetic field effects on the vestibular system: calculation of the pressure on the cupula due to ionic current-induced Lorentz force. Physics in Medicine and Biology, 57(14), https://doi.org/10.1088/0031-9155/57/14/4477

Large static magnetic fields may be employed in magnetic resonance imaging (MRI). At high magnetic field strengths (usually from about 3 tesla and above) it is possible for humans to perceive a number of effects. One such effect is mild vertigo. Rece... Read More about Magnetic field effects on the vestibular system: calculation of the pressure on the cupula due to ionic current-induced Lorentz force.

A novel receive-only liquid nitrogen (LN2)-cooled RF coil for high-resolution in vivo imaging on a 3-Tesla whole-body scanner (2012)
Journal Article
Hu, B., Varma, G., Randell, C., Keevil, S. F., Schaeffter, T., & Glover, P. (2012). A novel receive-only liquid nitrogen (LN2)-cooled RF coil for high-resolution in vivo imaging on a 3-Tesla whole-body scanner. IEEE Transactions on Instrumentation and Measurement, 61(1), https://doi.org/10.1109/TIM.2011.2157575

The design and operation of a receive-only liquid nitrogen (LN2)-cooled coil and cryostat suitable for medical imaging on a 3-T whole-body magnetic resonance scanner is presented. The coil size, optimized for murine imaging, was determined by using... Read More about A novel receive-only liquid nitrogen (LN2)-cooled RF coil for high-resolution in vivo imaging on a 3-Tesla whole-body scanner.

Interaction of MRI field gradients with the human body (2009)
Journal Article
Glover, P. (2009). Interaction of MRI field gradients with the human body. Physics in Medicine and Biology, 54(21), Article R99-R115. https://doi.org/10.1088/0031-9155/54/21/R01

In this review, the effects of low-frequency electromagnetic fields encountered specifically during magnetic resonance imaging (MRI) are examined. The primary biological effect at frequencies of between 100 and 5000 Hz (typical of MRI magnetic field... Read More about Interaction of MRI field gradients with the human body.