Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jens M. Edmund"'
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 18, Iss , Pp 55-60 (2021)
Background and purpose: Radiotherapy (RT) based on magentic resonance imaging (MRI) only is currently used clinically in the pelvis. A synthetic computed tomography (sCT) is needed for dose planning. Here, we investigate the accuracy of cone beam CT
Externí odkaz:
https://doaj.org/article/a677f5e663d94cd1921fb106cc2f5635
Autor:
Katri, Nousiainen, Grichar Valdes, Santurio, Nils, Lundahl, Rickard, Cronholm, Carl, Siversson, Jens M, Edmund
Publikováno v:
Nousiainen, K, Santurio, G V, Lundahl, N, Cronholm, R, Siversson, C & Edmund, J M 2023, ' Evaluation of MRI-only based online adaptive radiotherapy of abdominal region on MR-linac ', Journal of Applied Clinical Medical Physics, vol. 24, no. 3, e13838 . https://doi.org/10.1002/acm2.13838
Purpose: A hybrid magnetic resonance linear accelerator (MRL) can perform magnetic resonance imaging (MRI) with high soft-tissue contrast to be used for online adaptive radiotherapy (oART). To obtain electron densities needed for the oART dose calcul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::580a66936460bbfaeb32b860686a0f90
http://hdl.handle.net/10138/356689
http://hdl.handle.net/10138/356689
Autor:
Katri Nousiainen, Grichar Valdes Santurio, Nils Lundahl, Rickard Cronholm, Carl Siversson, Jens M Edmund
Publikováno v:
Physica Medica. 104:S15
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e29c222540a64979884aa19191f6bf3
https://doi.org/10.1016/s1120-1797(22)02147-0
https://doi.org/10.1016/s1120-1797(22)02147-0
Publikováno v:
Radiotherapy and Oncology. 152:S964-S965
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c88a87a726882cdb1d85e36aa70be74
https://doi.org/10.1016/s0167-8140(21)01757-6
https://doi.org/10.1016/s0167-8140(21)01757-6
Publikováno v:
Acta oncologica (Stockholm, Sweden). 58(10)
Background: Dual-energy (DE) diagnostic computed tomography (CT) combines two scans of different photon energy spectra which can provide additional image information as compared to standard CT. We ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c5773f5d4b9750b58140867dda73f1a
https://pubmed.ncbi.nlm.nih.gov/31271086
https://pubmed.ncbi.nlm.nih.gov/31271086
Publikováno v:
Physica Medica. 52:14-15
Purpose The complexity of dose planning and treatment delivery systems has increased and necessitates a more comprehensive physics quality assurance (QA). These QA checks can, however, be quite time consuming. Therefore, there is a need for automatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fbc9694805540a0d79eb944504a2b3e
https://doi.org/10.1016/j.ejmp.2018.06.108
https://doi.org/10.1016/j.ejmp.2018.06.108
Publikováno v:
Physica Medica. 52:179-180
Purpose Metal implants lead to streak and cupping artifacts in computed tomography (CT) images, causing erroneous CT number estimates for radiation therapy (RT) planning. We recently introduced kerMAR, a novel Magnetic Resonance (MR)-based CT metal a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5728620c5690bb80bc7cc58b8db2b85e
https://doi.org/10.1016/j.ejmp.2018.06.553
https://doi.org/10.1016/j.ejmp.2018.06.553
Publikováno v:
Physica Medica. 52:174-175
Purpose Dual energy (DE) computed tomography (CT), combines two scans obtained with different photon energy spectra. It is known from diagnostic CT to reduce metal artefacts. This study investigates the feasibility of developing a DE protocol for con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3bf7d33eb5651e629253b2d0d8d00d9
https://doi.org/10.1016/j.ejmp.2018.06.540
https://doi.org/10.1016/j.ejmp.2018.06.540
Publikováno v:
Medical physics. 43(8)
In radiotherapy based only on magnetic resonance imaging (MRI), knowledge about tissue electron densities must be derived from the MRI. This can be achieved by converting the MRI scan to the so-called pseudo-computed tomography (pCT). An obstacle is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8e00b334d991dcc34a5b08df00341936
https://pubmed.ncbi.nlm.nih.gov/27487892
https://pubmed.ncbi.nlm.nih.gov/27487892
Autor:
Jens M. Edmund
Publikováno v:
Physica Medica. 52:21
Purpose The introduction of MRI as a preferred delineation modality in radiotherapy (RT) has sparked the idea of performing all steps of the radiotherapy chain on this modality. The main scientific argument for so-called MRI-only RT is the eliminatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250b7378b77e63215ebeadb0c1452d63
https://doi.org/10.1016/j.ejmp.2018.06.122
https://doi.org/10.1016/j.ejmp.2018.06.122