Zobrazeno 1 - 10
of 180
pro vyhledávání: '"R J, Ott"'
Publikováno v:
Medical Image Analysis. 13:900-909
This paper presents a novel data-driven method for image intensity normalisation, which is a prerequisite step for any kind of image comparison. The method involves a novel application of the Siddon algorithm that was developed initially for fast rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc9cca3508b07acba5035c3876c274a8
https://doi.org/10.1016/j.media.2009.08.002
https://doi.org/10.1016/j.media.2009.08.002
Autor:
I. Moody, John E. Lees, D. Monk, R. J. Ott, Alan C. Perkins, M. Early, D.J. Bassford, G.W. Fraser, Elaine Blackshaw
Publikováno v:
Scopus-Elsevier
We describe the development of a scintillator-coated charge coupled device (CCD) based camera for imaging small volumes of radionuclide uptake in tissues. The high resolution gamma imager (HRGI) is a collimated, scintillator-coated, low cost, high pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c41d3c581f25a88eeeb3329ee146d142
https://doi.org/10.1109/tns.2005.862962
https://doi.org/10.1109/tns.2005.862962
Publikováno v:
Physics in Medicine and Biology. 49:3047-3066
In this paper two tests based on statistical models are presented and used to assess, quantify and provide positional information of the existence of bias and/or variations between planar images acquired at different times but under similar condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24730ed60b43277888c7d040a4dbc3b1
https://doi.org/10.1088/0031-9155/49/14/002
https://doi.org/10.1088/0031-9155/49/14/002
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 513:61-64
Performance of the PETRRA positron camera: reduction of scatter and randoms. The PETRRA positron camera consists of two 60 x 40 cm(2) detectors mounted on a rotating gantry. The detectors each contain 1 cm thick BaF2 crystals interfaced to a MWPC fil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fec3b247fb4baf4bde02eb0969a2d865
https://doi.org/10.1016/j.nima.2003.08.002
https://doi.org/10.1016/j.nima.2003.08.002
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 513:19-22
A large-area hybrid photodiode interfaced to scintillating crystals is being evaluated to determine its application as part of a positron camera dedicated to imaging the breast, positron emission mammography (PEM). The sensitive photocathode area of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fb43756e550ac1e95f6855d6eb644f9
https://doi.org/10.1016/s0168-9002(03)02128-4
https://doi.org/10.1016/s0168-9002(03)02128-4
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 513:23-26
The high resolution gamma imager (HRGI): a CCD based camera for medical imaging. We describe the High Resolution Gamma Imager (HRGI): a Charge Coupled Device (CCD) based camera for imaging small volumes of radionuclide uptake in tissues. The HRGI is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a022c0709f1d08ede1d0b897fd3a8dfa
https://doi.org/10.1016/s0168-9002(03)02129-6
https://doi.org/10.1016/s0168-9002(03)02129-6
Publikováno v:
Physics in Medicine and Biology. 48:1539-1549
Comparison of two medical images often requires image scaling as a pre-processing step. This is usually done with the scaling-to-the-mean or scaling-to-the-maximum techniques which, under certain circumstances, in quantitative applications may contri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc317ce0048804538fb5e25ae1b54f67
https://doi.org/10.1088/0031-9155/48/11/304
https://doi.org/10.1088/0031-9155/48/11/304
Autor:
John Mundy, T G Allen-Mersh, Jamal Zweit, R. J. Ott, M M Davies, M J Dworkin, Maggie A Flower, D Burke, V. Ralph McCready, P. Carnochan, Adrian D. Hall, H. Young
Publikováno v:
European Journal of Nuclear Medicine. 28:99-103
The aim of this study was to establish a quantitative positron emission tomography (PET) method for investigating angiotensin II (AII)-induced changes in blood flow distribution in the liver. This was in order to evaluate the role of vascular manipul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58da195f5dd3051448b0bdd001202d02
https://doi.org/10.1007/s002590000410
https://doi.org/10.1007/s002590000410
Publikováno v:
Physics in Medicine and Biology. 45:2011-2027
Autoradiography is a widely used technique for imaging trace quantities of radioactivity within biological samples, conventionally using photographic film. This method produces images with high spatial resolution, but it suffers from very low sensiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0830784ad732ac4bfe9f937a777d345
https://doi.org/10.1088/0031-9155/45/7/322
https://doi.org/10.1088/0031-9155/45/7/322
Autor:
Glenn D. Flux, R. J. Ott, Anwar R. Padhani, A. R. Norman, M.E. Hill, Andrew Webb, L Bishop, N. Maisey, David Cunningham
Publikováno v:
European Journal of Cancer. 36:200-206
Treatment of both Hodgkin's disease (HD) and non-Hodgkin's lymphoma (NHL) frequently results in a residual mass visible radiologically. Such patients may receive radiotherapy unnecessarily because the residual mass may represent benign fibrotic tissu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c0f121f260174931ac2eee3a463d206
https://doi.org/10.1016/s0959-8049(99)00249-x
https://doi.org/10.1016/s0959-8049(99)00249-x