Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Johan A. van Staden"'
Autor:
Michaella Morphis, Johan A. van Staden, Hanlie du Raan, Michael Ljungberg, Katarina Sjögreen Gleisner
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-18 (2024)
Abstract Purpose This study aimed to assess the accuracy of patient-specific absorbed dose calculations for tumours and organs at risk in radiopharmaceutical therapy planning, utilizing hybrid planar-SPECT/CT imaging. Methods Three Monte Carlo (MC) s
Externí odkaz:
https://doaj.org/article/8e2f81af11314e429f107379caa6f057
Publikováno v:
EJNMMI Physics, Vol 8, Iss 1, Pp 1-20 (2021)
Abstract Purpose The quantitative accuracy of Nuclear Medicine images, acquired for both planar and SPECT studies, is influenced by the isotope-collimator combination as well as image corrections incorporated in the iterative reconstruction process.
Externí odkaz:
https://doaj.org/article/017404bb9fe24115b67fe03a52902fd9
Publikováno v:
Heliyon, Vol 7, Iss 6, Pp e07196- (2021)
Purpose: Monte Carlo (MC) modelling techniques can assess the quantitative accuracy of both planar and SPECT Nuclear Medicine images. It is essential to validate the MC code's capabilities in modelling a specific clinical gamma camera, for radionucli
Externí odkaz:
https://doaj.org/article/460156aaf179463a984e21feb37bc081
Publikováno v:
Heliyon, Vol 7, Iss 2, Pp e06097- (2021)
Purpose: Monte Carlo (MC) modelling techniques have been used extensively in Nuclear Medicine (NM). The theoretical energy resolution relationship (∝1/E), does not accurately predict the gamma camera detector response across all energies. This stud
Externí odkaz:
https://doaj.org/article/8aaada528a544a688e8999eecd3689d9
Publikováno v:
EJNMMI Physics, Vol 8, Iss 1, Pp 1-20 (2021)
EJNMMI Physics
EJNMMI Physics
Purpose The quantitative accuracy of Nuclear Medicine images, acquired for both planar and SPECT studies, is influenced by the isotope-collimator combination as well as image corrections incorporated in the iterative reconstruction process. These fac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d09466d7d8f030dbec9b5defe37dfe73
https://doi.org/10.1186/s40658-021-00407-1
https://doi.org/10.1186/s40658-021-00407-1
Publikováno v:
SSRN Electronic Journal.
PurposeVirtual dosimetry using voxel-based patient-specific phantoms and Monte Carlo (MC) simulations offer the advantage of having a gold standard against which absorbed doses may be benchmarked to establish the dosimetry accuracy. Furthermore, thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed661ae2b95d4450dddf032077e4ff06
https://doi.org/10.2139/ssrn.3958626
https://doi.org/10.2139/ssrn.3958626
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 178
Purpose In this study, we used Gafchromic™ film XR-QA2 and RT-QA2 to characterize the film energy response against various radionuclides. We introduce a neutron depletion theoretical model that can describe film response as a function of cumulated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::846d4ef494dd064e35b18189efbe5bd1
https://pubmed.ncbi.nlm.nih.gov/34688025
https://pubmed.ncbi.nlm.nih.gov/34688025
Publikováno v:
IFMBE Proceedings ISBN: 9789811090349
The use of Monte Carlo (MC) simulations in nuclear medicine is on the rise due to its usefulness in modelling many physical phenomena which are difficult or impossible to measure. To use MC for gamma camera image simulations, it is important to valid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe6f893e3ad9a60d9c9c9565dce19eea
https://doi.org/10.1007/978-981-10-9035-6_106
https://doi.org/10.1007/978-981-10-9035-6_106
Autor:
Zoltan Szucs, William Rae, Modisenyane Mongane, S Lamprecht, Frederik H. Kriel, Jan Rijn Zeevaart, Cornelius J. Bester, Johan A. van Staden
Dinuclearbisphosphinogold(I) dithiocarbamato, BPDTC, was previously found to have antitumour activity in vitro. 198Au radiolabelled BPDTC (radiochemical yield of 70 ± 6 % and radiochemical purity of[95 %) was used to determine its in vivo biodistrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a873c80f0bc8a9054cd6786d1d1c68b2
https://hdl.handle.net/10394/18326
https://hdl.handle.net/10394/18326
Autor:
Matthew P, Akerman, Orde Q, Munro, Modisenyane, Mongane, Johan A, van Staden, William I D, Rae, Cornelius J, Bester, Biljana, Marjanovic-Painter, Zoltan, Szucs, Jan Rijn, Zeevaart
Publikováno v:
Journal of labelled compoundsradiopharmaceuticals. 56(9-10)
The biodistribution of an N2 N2 ' tetradentate gold(III) chelate, which is known to be cytotoxic towards a range of human cancer cell lines, was determined by a radiolabelled equivalent of the compound. The (198) Au-labelled gold(III) chelate of a bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::675b526329d7f8b83c638d80fcbe4b94
https://pubmed.ncbi.nlm.nih.gov/24285532
https://pubmed.ncbi.nlm.nih.gov/24285532