Search Results - "Marsden, P. K."

Correlation between Ki-67 immunohistochemistry and 18F-Fluorothymidine uptake in patients with cancer: A systematic review and meta-analysis by Chalkidou, A, Landau, D.B, Odell, E.W, Cornelius, V.R, O’Doherty, M.J, Marsden, P.K

“…Abstract Background Positron emission tomography (PET) imaging using the radiotracer 18F-Fluorothymidine (FLT) has been proposed as an imaging biomarker of…”
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Fast generation of 4D PET-MR data from real dynamic MR acquisitions by Tsoumpas, C, Buerger, C, King, A P, Mollet, P, Keereman, V, Vandenberghe, S, Schulz, V, Schleyer, P, Schaeffter, T, Marsden, P K

“…We have implemented and evaluated a framework for simulating simultaneous dynamic PET-MR data using the anatomic and dynamic information from real MR…”
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Detecting and estimating head motion in brain PET acquisitions using raw time-of-flight PET data by Schleyer, P J, Dunn, J T, Reeves, S, Brownings, S, Marsden, P K, Thielemans, K

“…Head motion during brain PET imaging is not uncommon and can negatively affect image quality. Motion correction techniques typically either use hardware to…”
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Establishment of a UK-wide network to facilitate the acquisition of quality assured FDG–PET data for clinical trials in lymphoma by Barrington, S.F., MacKewn, J.E., Schleyer, P., Marsden, P.K., Mikhaeel, N.G., Qian, W., Mouncey, P., Patrick, P., Popova, B., Johnson, P., Radford, J., O'Doherty, M.J.

“…Multicentre trials are required to determine how [fluorine-18]-2-fluoro-2-deoxy-D-glucose–positron emission tomography imaging can guide cancer treatment…”
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Regional bone metabolism at the lumbar spine and hip following discontinuation of alendronate and risedronate treatment in postmenopausal women by Frost, M. L., Siddique, M., Blake, G. M., Moore, A. E., Marsden, P. K., Schleyer, P. J., Eastell, R., Fogelman, I.

“…Summary The aim of this study was to examine the effects of bisphosphonate discontinuation on bone metabolism at the spine and hip measured using 18 …”
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Practical issues and limitations of brain attenuation correction on a simultaneous PET-MR scanner by Mackewn, J. E., Stirling, J., Jeljeli, S., Gould, S-M., Johnstone, R. I., Merida, I., Pike, L. C., McGinnity, C. J., Beck, K., Howes, O., Hammers, A., Marsden, P. K.

“…Background Despite the advent of clinical PET-MR imaging for routine use in 2011 and the development of several methods to address the problem of attenuation…”
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Differential changes in brain glucose metabolism during hypoglycaemia accompany loss of hypoglycaemia awareness in men with type 1 diabetes mellitus. An [11C]-3-O-methyl-D-glucose PET study by BINGHAM, E. M, DUNN, J. T, SMITH, D, SUTCLIFFE-GOULDEN, J, REED, L. J, MARSDEN, P. K, AMIEL, S. A

“…Hypoglycaemia unawareness in type 1 diabetes increases the risk of severe hypoglycaemia and impairs quality of life for people with diabetes. To explore the…”
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Correction to: Practical issues and limitations of brain attenuation correction on a simultaneous PET-MR scanner by Mackewn, J. E., Stirling, J., Jeljeli, S., Gould, S-M, Johnstone, R. I., Merida, I., Pike, L. C., McGinnity, C. J., Beck, K., Howes, O., Hammers, A., Marsden, P. K.

“…An amendment to this paper has been published and can be accessed via the original article…”
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Developments in component-based normalization for 3D PET by Badawi, R D, Marsden, P K

“…Normalization in positron emission tomography (PET) is the process of ensuring that all lines of response joining detectors in coincidence have the same…”
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Analysis and comparison of two methods for motion correction in PET imaging by Polycarpou, I., Tsoumpas, C., Marsden, P. K.

“…Purpose: Although there have been various proposed methods for positron emission tomography (PET) motion correction, there is not sufficient evidence to answer…”
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Thoracic respiratory motion estimation from MRI using a statistical model and a 2-D image navigator by King, A.P., Buerger, C., Tsoumpas, C., Marsden, P.K., Schaeffter, T.

“…[Display omitted] ► Respiratory motion model that can predict intra- and inter-cycle motion variability. ► PCA-based model applied using a real-time 2-D MRI…”
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Extracting a respiratory signal from raw dynamic PET data that contain tracer kinetics by Schleyer, P J, Thielemans, K, Marsden, P K

“…Data driven gating (DDG) methods provide an alternative to hardware based respiratory gating for PET imaging. Several existing DDG approaches obtain a…”
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Simultaneous PET and MR imaging by Shao, Y, Cherry, S R, Farahani, K, Meadors, K, Siegel, S, Silverman, R W, Marsden, P K

“…We have developed a prototype PET detector which is compatible with a clinical MRI system to provide simultaneous PET and MR imaging. This single-slice PET…”
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Design and development of an MR-compatible PET scanner for imaging small animals by Mackewn, J.E., Strul, D., Hallett, W.A., Halsted, P., Page, R.A., Keevil, S.F., Williams, S.C.R., Cherry, S.R., Marsden, P.K.

“…A single-slice magnetic resonance (MR) compatible positron emission tomography (PET) system with a transaxial field of view /spl sim/6 cm has been designed and…”
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FPGA-based RF interference reduction techniques for simultaneous PET-MRI by Gebhardt, P, Wehner, J, Weissler, B, Botnar, R, Marsden, P K, Schulz, V

“…The combination of positron emission tomography (PET) and magnetic resonance imaging (MRI) as a multi-modal imaging technique is considered very promising and…”
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Prospective evaluation of soft tissue masses and sarcomas using fluorodeoxyglucose positron emission tomography by Lucas, J. D., O'Doherty, M. J., Cronin, B. F., Marsden, P. K., Lodge, M. A., McKee, P. H., Smith, M. A.

“…Background: The differentiation of soft tissue sarcoma (STS) from benign masses is difficult owing to their clinical and radiological similarities. Accurate…”
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An improved analytical detector response function model for multilayer small-diameter PET scanners by Strul, D, Slates, R B, Dahlbom, M, Cherry, S R, Marsden, P K

“…The optimization of spatial resolution is a critical consideration in the design of small-diameter positron emission tomography (PET) scanners for animal…”
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The effect of regularization in motion compensated PET image reconstruction: a realistic numerical 4D simulation study by Tsoumpas, C, Polycarpou, I, Thielemans, K, Buerger, C, King, A P, Schaeffter, T, Marsden, P K

“…Following continuous improvement in PET spatial resolution, respiratory motion correction has become an important task. Two of the most common approaches that…”
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Randoms variance reduction in 3D PET by Badawi, R D, Miller, M P, Bailey, D L, Marsden, P K

“…In positron emission tomography (PET), random coincidence events must be removed from the measured signal in order to obtain quantitatively accurate data. The…”
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Development of a PET detector system compatible with MRI/NMR systems by Shao, Y., Cherry, S.R., Farahani, K., Slates, R., Silverman, R.W., Meadors, K., Bowery, A., Siegel, S., Marsden, P.K., Garlick, P.B.

“…We report the development of a prototype positron emission tomography (PET) scanner compatible with clinical magnetic resonance imaging (MRI) scanners and…”
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