Zobrazeno 1 - 10
of 44
pro vyhledávání: '"J G M Kok"'
Autor:
Luca van Dijk, Cornelis A. T. van den Berg, J G M Kok, Rob H N Tijssen, S.L. Hackett, Victor N. Malkov, Jan J W Lagendijk, Stefan E Zijlema
Publikováno v:
Physics in Medicine and Biology, 64(18). IOP Publishing Ltd.
The lack of radiation-attenuating tuning capacitors in high impedance coils (HICs) make HICs an interesting building block of receive arrays for MRI-guided radiotherapy (MRIgRT). Additionally, their flexibility and limited channel coupling allow for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2cf1f3e072e9ca7e3de6deacf92598a
https://dspace.library.uu.nl/handle/1874/389576
https://dspace.library.uu.nl/handle/1874/389576
Autor:
Marielle E.P. Philippens, J G M Kok, M Glitzner, Corine A. van Es, Bram van Asselen, J.W.H. Wolthaus, Gijsbert H. Bol, Eline N. de Groot-van Breugel, S J Woodings, Jan J W Lagendijk, Dennis Winkel, Ina M. Jürgenliemk-Schulz, Bas W. Raaymakers, Martijn Intven, Rob H N Tijssen, S.L. Hackett, Wietse S.C. Eppinga, K.J. Brown, Petra S. Kroon, Ellart M Aalbers, Anita M. Werensteijn-Honingh, C Kontaxis, Alexis N.T.J. Kotte
Publikováno v:
Radiotherapy & Oncology, 134, 50. Elsevier Ireland Ltd
Online adaptive radiotherapy using the 1.5 Tesla MR-linac is feasible for SBRT (5 × 7 Gy) of pelvic lymph node oligometastases. The workflow allows full online planning based on daily anatomy. Session duration is less than 60 min. Quality assurance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd6d8db8d65c6be26368a2a3bafff49
https://dspace.library.uu.nl/handle/1874/389528
https://dspace.library.uu.nl/handle/1874/389528
Autor:
S J Woodings, S.L. Hackett, Bas W. Raaymakers, J.W.H. Wolthaus, B. Van Asselen, J J W Lagendijk, J G M Kok
Publikováno v:
Medical Physics. 43:3961-3968
Purpose: A protocol for reference dosimetry for the MR-linac is under development. The 1.5 T magnetic field changes the mean path length of electrons in an air-filled ionization chamber but has little effect on the electron trajectories in a surround
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fbb035ecb83f1eff326a216ab5025ef
https://doi.org/10.1118/1.4952727
https://doi.org/10.1118/1.4952727
Autor:
S J Woodings, J.W.H. Wolthaus, B. Van Asselen, T. Van Soest, S.L. Hackett, Bas W. Raaymakers, J G M Kok
Publikováno v:
Physics in Medicine and Biology, 63(12). IOP Publishing Ltd.
A generic formalism is proposed for reference dosimetry in the presence of a magnetic field. Besides the regular correction factors from the conventional reference dosimetry formalisms, two factors are used to take into account magnetic field effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b1760c61dd4953a4b0a1a6bab1079c6
https://dspace.library.uu.nl/handle/1874/370126
https://dspace.library.uu.nl/handle/1874/370126
Autor:
S J Woodings, J.J.W. Lagendijk, Bas W. Raaymakers, J.W.H. Wolthaus, B. Van Asselen, J.H.W. De Vries, J G M Kok
Publikováno v:
Physics in Medicine and Biology, 63(5). IOP Publishing Ltd.
Accurate small-field dosimetry is critical for a magnetic resonance linac (MRI-linac). The PTW 60019 microDiamond is close to an ideal detector for small field dosimetry due to its small physical size, high signal-to-noise ratio and approximate water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dad35c9c1fec0fa57b67346cbd0b991b
https://doi.org/10.1088/1361-6560/aaa1c6
https://doi.org/10.1088/1361-6560/aaa1c6
Autor:
M.E.P. Philippens, Gijsbert H. Bol, E.N. De Groot-van Breugel, M Glitzner, S J Woodings, Wietse S.C. Eppinga, J G M Kok, Bas W. Raaymakers, I.M. Jürgenliemk-Schulz, J.J.W. Lagendijk, R.H.N. Tijssen, Dennis Winkel, E.M. Aalbers, Anita M. Werensteijn-Honingh, M.P.W. Intven, J.W.H. Wolthaus, K.J. Brown, S.L. Hackett, Petra S. Kroon, Alexis N.T.J. Kotte, B. Van Asselen
Publikováno v:
Radiotherapy and Oncology. 133:S875-S876
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e0d979794bc91b7e78edc7ba5a93f2b
https://doi.org/10.1016/s0167-8140(19)32044-4
https://doi.org/10.1016/s0167-8140(19)32044-4
Autor:
J.H.W. Vries de, Bas W. Raaymakers, J.W.H. Wolthaus, J G M Kok, T. Soest van, J.J. Bluemink, S J Woodings, S.L. Hackett, B. Asselen van, H.M. Zijp van
Publikováno v:
Radiotherapy and Oncology. 127:S561-S562
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc147cfdb884a58b21fa19dd384bea1
https://doi.org/10.1016/s0167-8140(18)31316-1
https://doi.org/10.1016/s0167-8140(18)31316-1
Publikováno v:
Physics in Medicine and Biology. 58:5945-5957
In the UMC Utrecht a prototype MR-linac has been installed. The system consists of a 6 MV Elekta (Crawley, UK) linear accelerator and a 1.5 T Philips (Best, The Netherlands) Achieva MRI system. This paper investigates the feasibility to correct the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81019df4a149bc66f63567bef3ebd8f9
https://doi.org/10.1088/0031-9155/58/17/5945
https://doi.org/10.1088/0031-9155/58/17/5945
Autor:
Arjan Bel, S J Woodings, K Smit, J.W.H. Wolthaus, J J W Lagendijk, Antonetta C. Houweling, B. Van Asselen, J G M Kok, Bas W. Raaymakers, J.H.W. De Vries
Publikováno v:
Physics in medicine and biology, 61(3), N80-N89. IOP Publishing Ltd.
Physics in Medicine and Biology, 61(3), N80. IOP Publishing Ltd.
Physics in Medicine and Biology, 61(3), N80. IOP Publishing Ltd.
At the UMC Utrecht, a linear accelerator with integrated magnetic resonance imaging (MRI) has been developed, the MR-linac. Patient-specific quality assurance (QA) of treatment plans for MRI-based image guided radiotherapy requires QA equipment compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e234861873e72b812c430beaf74564ab
https://dspace.library.uu.nl/handle/1874/343007
https://dspace.library.uu.nl/handle/1874/343007
Autor:
J. G. M. Kok
Publikováno v:
Fysica ISBN: 9789036814560
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8d3976f6d1e6a0c87a9bd9c47f8e37
https://doi.org/10.1007/978-90-368-1457-7_2
https://doi.org/10.1007/978-90-368-1457-7_2