Search Results - "Bayford, R."

Bioimpedance tomography (electrical impedance tomography) by Bayford, R H

“…Electrical impedance tomography (EIT) is a relatively new imaging method that has evolved over the past 20 years. It has the potential to be of great value in…”
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Clinical performance of a novel textile interface for neonatal chest electrical impedance tomography by Sophocleous, L, Frerichs, I, Miedema, M, Kallio, M, Papadouri, T, Karaoli, C, Becher, T, Tingay, D G, van Kaam, A H, Bayford, R, Waldmann, A D

“…Critically ill neonates and infants might particularly benefit from continuous chest electrical impedance tomography (EIT) monitoring at the bedside. In this…”
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Effects of Patient Recumbency Position on Neonatal Chest EIT by Seifnaraghi, N., De Gelidi, S., Frerichs, I., Kallio, M., Sorantin, E., Demosthenous, A., Bayford, R. H.

“…This paper investigates the overlooked effects of the patient recumbency positions on one of the key clinically used parameters in chest electrical impedance…”
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Effect of sternal electrode gap and belt rotation on the robustness of pulmonary electrical impedance tomography parameters by Sophocleous, L, Waldmann, A D, Becher, T, Kallio, M, Rahtu, M, Miedema, M, Papadouri, T, Karaoli, C, Tingay, D G, Van Kaam, A H, Yerworth, R, Bayford, R, Frerichs, I

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Compressive sensing in electrical impedance tomography for breathing monitoring by Shiraz, A, Khodadad, D, Nordebo, S, Yerworth, R, Frerichs, I, van Kaam, A, Kallio, M, Papadouri, T, Bayford, R, Demosthenous, A

“…Electrical impedance tomography (EIT) is a functional imaging technique in which cross-sectional images of structures are reconstructed based on boundary…”
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Design and calibration of a compact multi-frequency EIT system for acute stroke imaging by McEwan, A, Romsauerova, A, Yerworth, R, Horesh, L, Bayford, R, Holder, D

“…A new, compact UCLH Mk 2.5 EIT system has been developed and calibrated for EIT imaging of the head. Improvements include increased input and output…”
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The influence of reactivity of the electrode–brain interface on the crossing electric current in therapeutic deep brain stimulation by Yousif, N, Bayford, R, Liu, X

“…Abstract The use of deep brain stimulation (DBS) as an effective clinical therapy for a number of neurological disorders has been greatly hindered by the lack…”
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Multi-frequency electrical impedance tomography (EIT) of the adult human head: initial findings in brain tumours, arteriovenous malformations and chronic stroke, development of an analysis method and calibration by Romsauerova, A, McEwan, A, Horesh, L, Yerworth, R, Bayford, R H, Holder, D S

“…MFEIT (multi-frequency electrical impedance tomography) could distinguish between ischaemic and haemorrhagic stroke and permit the urgent use of thrombolytic…”
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Quantifying the effects of the electrode–brain interface on the crossing electric currents in deep brain recording and stimulation by Yousif, N, Bayford, R, Wang, S, Liu, X

“…Abstract A depth electrode–brain interface (EBI) is formed once electrodes are implanted into the human brain. We investigated the impact of the EBI on the…”
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Improving the finite element forward model of the human head by warping using elastic deformation by Tizzard, A, Bayford, R H

“…As the use of realistic geometry in the forward model of electrical impedance tomography (EIT) of brain function appears to improve image reconstruction, the…”
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Generating accurate finite element meshes for the forward model of the human head in EIT by Tizzard, A, Horesh, L, Yerworth, R J, Holder, D S, Bayford, R H

“…The use of realistic anatomy in the model used for image reconstruction in EIT of brain function appears to confer significant improvements compared to…”
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Factors limiting the application of electrical impedance tomography for identification of regional conductivity changes using scalp electrodes during epileptic seizures in humans by Fabrizi, L, Sparkes, M, Horesh, L, Perez-Juste Abascal, J F, McEwan, A, Bayford, R H, Elwes, R, Binnie, C D, Holder, D S

“…Electrical impedance tomography (EIT) has the potential to produce images during epileptic seizures. This might improve the accuracy of the localization of…”
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A method for removing artefacts from continuous EEG recordings during functional electrical impedance tomography for the detection of epileptic seizures by Fabrizi, L, Yerworth, R, McEwan, A, Gilad, O, Bayford, R, Holder, D S

“…Electrical impedance tomography (EIT) is a portable, non-invasive medical imaging method, which could be employed to image the seizure onset in subjects…”
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Development of a neonate lung reconstruction algorithm using a wavelet AMG and estimated boundary form by Bayford, R, Kantartzis, P, Tizzard, A, Yerworth, R, Liatsis, P, Demosthenous, A

“…Objective, non-invasive measures of lung maturity and development, oxygen requirements and lung function, suitable for use in small, unsedated infants, are…”
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Electrical impedance tomography spectroscopy (EITS) for human head imaging by Yerworth, R J, Bayford, R H, Brown, B, Milnes, P, Conway, M, Holder, D S

“…Electrical impedance tomography (EIT) is a recently developed medical imaging method which has practical advantages for imaging brain function as it is…”
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Design and performance of the UCLH mark 1b 64 channel electrical impedance tomography (EIT) system, optimized for imaging brain function by Yerworth, R J, Bayford, R H, Cusick, G, Conway, M, Holder, D S

“…The UCLH Mark 1b is a portable EIT system that can address up to 64 electrodes, which has been designed for imaging brain function with scalp electrodes. It…”
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Using the GRID to improve the computation speed of electrical impedance tomography (EIT) reconstruction algorithms by Fritschy, J, Horesh, L, Holder, D S, Bayford, R H

“…In our group at University College London, we have been developing electrical impedance tomography (EIT) of brain function. We have attempted to improve image…”
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The effect of layers in imaging brain function using electrical impedance tomograghy by Liston, A D, Bayford, R H, Holder, D S

“…Electrical impedance tomography (EIT) has promise for imaging brain function with rings of scalp electrodes, but hitherto human images have been collected and…”
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Three-Dimensional Electrical Impedance Tomography of Human Brain Activity by Tidswell, Tom, Gibson, Adam, Bayford, Richard H., Holder, David S.

“…Regional cerebral blood flow and blood volume changes that occur during human brain activity will change the local impedance of that cortical area, as blood…”
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Development of a Biosensor for fast point-of-care Blood Analysis of Troponin by Bayford, R, Damaso, R, Jiang, D, Rahal, M, Demosthenous, A

“…We present the development of novel tetrapolar EIS biosensor for the detect of troponin. Troponin has considerable diagnostic power and provide invaluable…”
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