Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Sjoerd P M, Crijns"'
Autor:
Fieke M. Prins, Sjoerd P M Crijns, Linda G W Kerkmeijer, Rob H N Tijssen, B. Stemkens, Cornelis A. T. van den Berg, Baudouin Denis de Senneville, Jan J W Lagendijk, M Glitzner, C Kontaxis
Publikováno v:
Physics in Medicine and Biology, 62(18), 7407. IOP Publishing Ltd.
Stereotactic body radiation therapy (SBRT) has shown great promise in increasing local control rates for renal-cell carcinoma (RCC). Characterized by steep dose gradients and high fraction doses, these hypo-fractionated treatments are, however, prone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf0c592ad45ea04d07181e8c4ed3e41a
https://doi.org/10.1088/1361-6560/aa83f7
https://doi.org/10.1088/1361-6560/aa83f7
Autor:
Onne Reerink, M. van Vulpen, R.R. Hiensch, H.D. Heerkens, Gert J. Meijer, Sjoerd P M Crijns, C.A.T. Van den Berg, Martijn Intven
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 2, Iss, Pp 7-10 (2017)
We studied the influence of a custom abdominal corset on cine MRI based pancreatic tumor motion. All patients were imaged twice; once without the corset, and once with the corset in place. Craniocaudal motion decreased on average by 4.1 mm, from 11.3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85566f8f70ac2b6c0f0c375bf7409c3f
Autor:
Anna Andreychenko, Alexander J.E. Raaijmakers, Alessandro Sbrizzi, J.J.W. Lagendijk, Sjoerd P M Crijns, Peter R. Luijten, C.A.T. Van den Berg
Publikováno v:
Magnetic Resonance in Medicine, 77(1), 221. John Wiley and Sons Inc.
Development of a passive respiratory motion sensor based on the noise variance of the receive coil array.Respiratory motion alters the body resistance. The noise variance of an RF coil depends on the body resistance and, thus, is also modulated by re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6eeaf00a7ee660fb9c7de30c34363350
https://doi.org/10.1002/mrm.26108
https://doi.org/10.1002/mrm.26108
An optimization framework to maximize signal-to-noise ratio in simultaneous multi-slice body imaging
Autor:
Jan J W Lagendijk, Sjoerd P M Crijns, Rob H N Tijssen, Anna Andreychenko, Alessandro Sbrizzi, B. Stemkens, Cornelis A. T. van den Berg
Publikováno v:
NMR in Biomedicine. 29:275-283
Parallel imaging is essential for the acceleration of abdominal and pelvic 2D multi-slice imaging, in order to reduce scan time and mitigate motion artifacts. Controlled Aliasing In Parallel Imaging Results IN Higher Acceleration (CAIPIRINHA) acceler
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdf86a3a2f259fb0b68ad83d9008f225
https://doi.org/10.1002/nbm.3457
https://doi.org/10.1002/nbm.3457
Autor:
Sjoerd P M Crijns, Bas W. Raaymakers
Publikováno v:
Physics in Medicine and Biology. 59:3241-3247
Recently, the MRI-linac prototype at UMC Utrecht was upgraded with a ring-based gantry, where all linac components are mounted on a ring around the MR scanner. Although adaptations have been made to both linac and MR magnets in order to account for m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5e76b5d8592f4f7b7863be6944c21da
https://doi.org/10.1088/0031-9155/59/13/3241
https://doi.org/10.1088/0031-9155/59/13/3241
Autor:
Maurits M Barendrecht, Jan J W Lagendijk, Bas W. Raaymakers, Bernard A. Zonnenberg, Mette K Stam, Martijn Intven, Sjoerd P M Crijns, Marco van Vulpen
Publikováno v:
Physics in Medicine and Biology. 58:2235-2245
Current treatments for renal cell carcinoma have a high complication rate due to the invasiveness of the treatment. With the MRI-linac it may be possible to treat renal tumours non-invasively with high-precision radiotherapy. This is expected to redu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3ed9795104f5a726c049f3a8dfb8f49
https://doi.org/10.1088/0031-9155/58/7/2235
https://doi.org/10.1088/0031-9155/58/7/2235
Autor:
Bas W. Raaymakers, Jan J W Lagendijk, Stan J Hoogcarspel, Sjoerd P M Crijns, Marco van Vulpen
Publikováno v:
Physics in Medicine and Biology. 58:1925-1932
The purpose of this paper is to evaluate the impact of a flexible radiofrequency coil on the treatment delivery of an online MR-guided radiotherapy treatment. For this study, we used a Synergy MR body coil (Philips, Best) in combination with the curr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a36165e7141b07423c26f2eca2a3ac8a
https://doi.org/10.1088/0031-9155/58/6/1925
https://doi.org/10.1088/0031-9155/58/6/1925
Autor:
Uulke A. van der Heide, Sjoerd P M Crijns, Maria A. Schmidt, Glyn Coutts, Eric S. Paulson, Brian Keller, Jihong Wang
Publikováno v:
Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology. 121(2)
Aim To determine the levels at which consensus could be reached regarding general and site-specific principles of MRI simulation for offline MRI-aided external beam radiation treatment planning. Methods A process inspired by the Delphi method was emp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0b58f5c4a9cb3890800d3d6c37f1b51
https://pubmed.ncbi.nlm.nih.gov/27838146
https://pubmed.ncbi.nlm.nih.gov/27838146
Publikováno v:
Physics in Medicine and Biology. 57:7863-7872
In radiotherapy one aims to deliver a radiation dose to a tumour with high geometrical accuracy while sparing organs at risk (OARs). Although image guidance decreases geometrical uncertainties, treatment of cancer of abdominal organs is further compl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a45cb17c331fd24a814739477a5716b2
https://doi.org/10.1088/0031-9155/57/23/7863
https://doi.org/10.1088/0031-9155/57/23/7863
Autor:
Jan J W Lagendijk, Maurits M Barendrecht, Bernard A. Zonnenberg, Sjoerd P M Crijns, Marco van Vulpen, Bas W. Raaymakers, Mette K Stam
Publikováno v:
Physics in Medicine and Biology. 57:6797-6805
An MRI-linac system provides direct MRI feedback and with that the possibility of adapting radiation treatments to the actual tumour position. This paper addresses the use of fast 1D MRI, pencil-beam navigators, for this feedback. The accuracy of usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b228210b2de32cdc2c70a4bfad0b0540
https://doi.org/10.1088/0031-9155/57/21/6797
https://doi.org/10.1088/0031-9155/57/21/6797