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513 results on '"Raaymakers, Bas W."'

101. Feasibility of stereotactic radiotherapy using a 1.5 T MR-linac: Multi-fraction treatment of pelvic lymph node oligometastases

Author

Werensteijn-Honingh, Anita M., Kroon, Petra S., Winkel, Dennis, Aalbers, Ellart M., van Asselen, Bram, Bol, Gijsbert H., Brown, Kevin J., Eppinga, Wietse S.C., van Es, Corine A., Glitzner, Markus, de Groot-van Breugel, Eline N., Hackett, Sara L., Intven, Martijn, Kok, Jan G.M., Kontaxis, Charis, Kotte, Alexis N., Lagendijk, Jan J.W., Philippens, Mariëlle E.P., Tijssen, Rob H.N., Wolthaus, Jochem W.H., Woodings, Simon J., Raaymakers, Bas W., and Jürgenliemk-Schulz, Ina M.

Published
2019
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106. Fast contour propagation for MR‐guided prostate radiotherapy using convolutional neural networks

Author

Eppenhof, Koen A.J., Maspero, M., Savenije, M.H.F., de Boer, J.C.J., van der Voort van Zyp, J.R.N., Raaymakers, Bas W., Raaijmakers, Alexander, Veta, Mitko, van den Berg, C.A.T., Pluim, Josien P.W., Eppenhof, Koen A.J., Maspero, M., Savenije, M.H.F., de Boer, J.C.J., van der Voort van Zyp, J.R.N., Raaymakers, Bas W., Raaijmakers, Alexander, Veta, Mitko, van den Berg, C.A.T., and Pluim, Josien P.W.

Abstract

Purpose: To quickly and automatically propagate organ contours from pretreatment to fraction images in magnetic resonance (MR)-guided prostate external-beam radiotherapy. Methods: Five prostate cancer patients underwent 20 fractions of image-guided external-beam radiotherapy on a 1.5 T MR-Linac system. For each patient, a pretreatment T2-weighted three-dimensional (3D) MR imaging (MRI) scan was used to delineate the clinical target volume (CTV) contours. The same scan was repeated during each fraction, with the CTV contour being manually adapted if necessary. A convolutional neural network (CNN) was trained for combined image registration and contour propagation. The network estimated the propagated contour and a deformation field between the two input images. The training set consisted of a synthetically generated ground truth of randomly deformed images and prostate segmentations. We performed a leave-one-out cross-validation on the five patients and propagated the prostate segmentations from the pretreatment to the fraction scans. Three variants of the CNN, aimed at investigating supervision based on optimizing segmentation overlap, optimizing the registration, and a combination of the two were compared to results of the open-source deformable registration software package Elastix. Results: The neural networks trained on segmentation overlap or the combined objective achieved significantly better Hausdorff distances between predicted and ground truth contours than Elastix, at the much faster registration speed of 0.5 s. The CNN variant trained to optimize both the prostate overlap and deformation field, and the variant trained to only maximize the prostate overlap, produced the best propagation results. Conclusions: A CNN trained on maximizing prostate overlap and minimizing registration errors provides a fast and accurate method for deformable contour propagation for prostate MR-guided radiotherapy.

Published
2020

107. Target coverage and dose criteria based evaluation of the first clinical 1.5T MR-linac SBRT treatments of lymph node oligometastases compared with conventional CBCT-linac treatment

Author

ICT RT, Experimentele klinische fysica, Klinische Fysica RT, Cancer, Onderzoek Radiotherapie, MS Radiotherapie, Arts-assistenten Radiotherapie, Winkel, Dennis, Bol, Gijsbert H., Werensteijn-Honingh, Anita M., Intven, Martijn P.W., Eppinga, Wietse S.C., Hes, Jochem, Snoeren, Louk M.W., Sikkes, Gonda G., Gadellaa-van Hooijdonk, Christa G.M., Raaymakers, Bas W., Jürgenliemk-Schulz, Ina M., Kroon, Petra S., ICT RT, Experimentele klinische fysica, Klinische Fysica RT, Cancer, Onderzoek Radiotherapie, MS Radiotherapie, Arts-assistenten Radiotherapie, Winkel, Dennis, Bol, Gijsbert H., Werensteijn-Honingh, Anita M., Intven, Martijn P.W., Eppinga, Wietse S.C., Hes, Jochem, Snoeren, Louk M.W., Sikkes, Gonda G., Gadellaa-van Hooijdonk, Christa G.M., Raaymakers, Bas W., Jürgenliemk-Schulz, Ina M., and Kroon, Petra S.

Published
2020

108. Deep learning-enabled MRI-only photon and proton therapy treatment planning for paediatric abdominal tumours

Author

Beeldverwerking ISI, Fysica Radiotherapie Research, Cancer, Klinische Fysica RT, MS Radiotherapie, MS Orthopaedie Algemeen, Experimentele klinische fysica, Regenerative Medicine and Stem Cells, Florkow, Mateusz C, Guerreiro, Filipa, Zijlstra, Frank, Seravalli, Enrica, Janssens, Geert O, Maduro, John H, Knopf, Antje C, Castelein, René M, van Stralen, Marijn, Raaymakers, Bas W, Seevinck, Peter R, Beeldverwerking ISI, Fysica Radiotherapie Research, Cancer, Klinische Fysica RT, MS Radiotherapie, MS Orthopaedie Algemeen, Experimentele klinische fysica, Regenerative Medicine and Stem Cells, Florkow, Mateusz C, Guerreiro, Filipa, Zijlstra, Frank, Seravalli, Enrica, Janssens, Geert O, Maduro, John H, Knopf, Antje C, Castelein, René M, van Stralen, Marijn, Raaymakers, Bas W, and Seevinck, Peter R

Published
2020

109. Anatomically-adaptive multi-modal image registration for image-guided external-beam radiotherapy

Author

Experimentele klinische fysica, Cancer, Researchgr. Beeldg. Moleculaire Interv., Onderzoek Radiotherapie, MS Radiotherapie, Klinische Fysica RT, Zachiu, Cornel, Denis de Senneville, Baudouin, Willigenburg, Thomas, van der Voort van Zyp, Jochem R N, de Boer, J C J, Raaymakers, Bas W, Ries, Mario G, Experimentele klinische fysica, Cancer, Researchgr. Beeldg. Moleculaire Interv., Onderzoek Radiotherapie, MS Radiotherapie, Klinische Fysica RT, Zachiu, Cornel, Denis de Senneville, Baudouin, Willigenburg, Thomas, van der Voort van Zyp, Jochem R N, de Boer, J C J, Raaymakers, Bas W, and Ries, Mario G

Published
2020

110. Delivered dose quantification in prostate radiotherapy using online 3D cine imaging and treatment log files on a combined 1.5T magnetic resonance imaging and linear accelerator system

Author

Klinische Fysica RT, Kwaliteit Radiotherapie, Fysica Radiotherapie Research, Cancer, MS Radiotherapie, Onderzoek Radiotherapie, Experimentele klinische fysica, Kontaxis, Charis, de Muinck Keizer, Daan M., Kerkmeijer, Linda G.W., Willigenburg, Thomas, den Hartogh, Mariska D., van der Voort van Zyp, Jochem R.N., de Groot-van Breugel, Eline N., Hes, Jochem, Raaymakers, Bas W., Lagendijk, Jan J.W., de Boer, Hans C.J., Klinische Fysica RT, Kwaliteit Radiotherapie, Fysica Radiotherapie Research, Cancer, MS Radiotherapie, Onderzoek Radiotherapie, Experimentele klinische fysica, Kontaxis, Charis, de Muinck Keizer, Daan M., Kerkmeijer, Linda G.W., Willigenburg, Thomas, den Hartogh, Mariska D., van der Voort van Zyp, Jochem R.N., de Groot-van Breugel, Eline N., Hes, Jochem, Raaymakers, Bas W., Lagendijk, Jan J.W., and de Boer, Hans C.J.

Published
2020

120. Feasibility of stereotactic radiotherapy using a 1.5 T MR-linac : Multi-fraction treatment of pelvic lymph node oligometastases

Author

Werensteijn-Honingh, Anita M, Kroon, Petra S, Winkel, Dennis, Aalbers, Ellart M, van Asselen, Bram, Bol, Gijsbert H, Brown, Kevin J, Eppinga, Wietse S C, van Es, Corine A, Glitzner, Markus, de Groot-van Breugel, Eline N, Hackett, Sara L, Intven, Martijn, Kok, Jan G M, Kontaxis, Charis, Kotte, Alexis N, Lagendijk, Jan J W, Philippens, Mariëlle E P, Tijssen, Rob H N, Wolthaus, Jochem W H, Woodings, Simon J, Raaymakers, Bas W, Jürgenliemk-Schulz, Ina M, Werensteijn-Honingh, Anita M, Kroon, Petra S, Winkel, Dennis, Aalbers, Ellart M, van Asselen, Bram, Bol, Gijsbert H, Brown, Kevin J, Eppinga, Wietse S C, van Es, Corine A, Glitzner, Markus, de Groot-van Breugel, Eline N, Hackett, Sara L, Intven, Martijn, Kok, Jan G M, Kontaxis, Charis, Kotte, Alexis N, Lagendijk, Jan J W, Philippens, Mariëlle E P, Tijssen, Rob H N, Wolthaus, Jochem W H, Woodings, Simon J, Raaymakers, Bas W, and Jürgenliemk-Schulz, Ina M

Published
2019

121. Soft-tissue prostate intrafraction motion tracking in 3D cine-MR for MR-guided radiotherapy

Author

de Muinck Keizer, Daan M, Kerkmeijer, Linda G W, Maspero, Matteo, Andreychenko, Anna, van der Voort van Zyp, Jochem R N, Van den Berg, Cornelis A T, Raaymakers, Bas W, Lagendijk, Jan J W, de Boer, J C J, de Muinck Keizer, Daan M, Kerkmeijer, Linda G W, Maspero, Matteo, Andreychenko, Anna, van der Voort van Zyp, Jochem R N, Van den Berg, Cornelis A T, Raaymakers, Bas W, Lagendijk, Jan J W, and de Boer, J C J

Published
2019

122. MRI-based tumor inter-fraction motion statistics for rectal cancer boost radiotherapy

Author

Kleijnen, Jean Paul J.E., van Asselen, Bram, Van den Begin, Robbe, Intven, Martijn, Burbach, Johannes P.M., Reerink, Onne, Philippens, Marielle E.P., de Ridder, Mark, Lagendijk, Jan J.W., Raaymakers, Bas W., Kleijnen, Jean Paul J.E., van Asselen, Bram, Van den Begin, Robbe, Intven, Martijn, Burbach, Johannes P.M., Reerink, Onne, Philippens, Marielle E.P., de Ridder, Mark, Lagendijk, Jan J.W., and Raaymakers, Bas W.

Published
2019

124. Accelerating interventional real-time MRI

Author

Raaymakers, Bas W., Moonen, Chrit T.W., Bos, Clemens, Tijssen, Rob, Borman, Pim Timon Samuel, Raaymakers, Bas W., Moonen, Chrit T.W., Bos, Clemens, Tijssen, Rob, and Borman, Pim Timon Samuel

Published
2019

127. Towards MRI-guided rectal cancer boost radiotherapy

Author

Raaymakers, Bas W., Lagendijk, JJW, van Asselen, B, Intven, Martijn, Kleijnen, J.-P.J.E., Raaymakers, Bas W., Lagendijk, JJW, van Asselen, B, Intven, Martijn, and Kleijnen, J.-P.J.E.

Published
2019

131. Individual lymph nodes: 'See it and Zap it'

Author

Cancer, Onderzoek Radiotherapie, Klinische Fysica RT, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Werensteijn-Honingh, Anita M, Kroon, Petra S, Eppinga, Wietse S C, Bol, Gijsbert H, Intven, Martijn P W, de Boer, Hans C J, Snoeren, Louk M W, Hes, Jochem, Raaymakers, Bas W, Jürgenliemk-Schulz, Ina M, Cancer, Onderzoek Radiotherapie, Klinische Fysica RT, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Werensteijn-Honingh, Anita M, Kroon, Petra S, Eppinga, Wietse S C, Bol, Gijsbert H, Intven, Martijn P W, de Boer, Hans C J, Snoeren, Louk M W, Hes, Jochem, Raaymakers, Bas W, and Jürgenliemk-Schulz, Ina M

Published
2019

132. MRI-based tumor inter-fraction motion statistics for rectal cancer boost radiotherapy

Author

Ondersteuning Radiotherapie, Experimentele klinische fysica, Cancer, MS Radiotherapie, Onderzoek Radiotherapie, Fysica Radiotherapie Research, Kleijnen, Jean Paul J.E., van Asselen, Bram, Van den Begin, Robbe, Intven, Martijn, Burbach, Johannes P.M., Reerink, Onne, Philippens, Marielle E.P., de Ridder, Mark, Lagendijk, Jan J.W., Raaymakers, Bas W., Ondersteuning Radiotherapie, Experimentele klinische fysica, Cancer, MS Radiotherapie, Onderzoek Radiotherapie, Fysica Radiotherapie Research, Kleijnen, Jean Paul J.E., van Asselen, Bram, Van den Begin, Robbe, Intven, Martijn, Burbach, Johannes P.M., Reerink, Onne, Philippens, Marielle E.P., de Ridder, Mark, Lagendijk, Jan J.W., and Raaymakers, Bas W.

Published
2019

133. Evaluating the benefit of PBS vs. VMAT dose distributions in terms of dosimetric sparing and robustness against inter-fraction anatomical changes for pediatric abdominal tumors

Author

Experimentele klinische fysica, Cancer, Klinische Fysica RT, MS Radiotherapie, Researchgr. Beeldg. Moleculaire Interv., PMC Medisch specialisten, Fysica Radiotherapie Research, Guerreiro, Filipa, Zachiu, Cornel, Seravalli, Enrica, Ribeiro, Cássia O, Janssens, Geert O, Ries, Mario, de Senneville, Baudouin Denis, Maduro, John H, Brouwer, Charlotte L, Korevaar, Erik W, Knopf, Antje C, Raaymakers, Bas W, Experimentele klinische fysica, Cancer, Klinische Fysica RT, MS Radiotherapie, Researchgr. Beeldg. Moleculaire Interv., PMC Medisch specialisten, Fysica Radiotherapie Research, Guerreiro, Filipa, Zachiu, Cornel, Seravalli, Enrica, Ribeiro, Cássia O, Janssens, Geert O, Ries, Mario, de Senneville, Baudouin Denis, Maduro, John H, Brouwer, Charlotte L, Korevaar, Erik W, Knopf, Antje C, and Raaymakers, Bas W

Published
2019

134. Evaluation of plan adaptation strategies for stereotactic radiotherapy of lymph node oligometastases using online magnetic resonance image guidance

Author

Cancer, Fysica Radiotherapie Research, Klinische Fysica RT, Arts-assistenten Radiotherapie, Onderzoek Radiotherapie, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Bol, Gijsbert H., Werensteijn-Honingh, Anita M., Kiekebosch, Ilse H., van Asselen, Bram, Intven, Martijn P.W., Eppinga, Wietse S.C., Raaymakers, Bas W., Jürgenliemk-Schulz, Ina M., Kroon, Petra S., Cancer, Fysica Radiotherapie Research, Klinische Fysica RT, Arts-assistenten Radiotherapie, Onderzoek Radiotherapie, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Bol, Gijsbert H., Werensteijn-Honingh, Anita M., Kiekebosch, Ilse H., van Asselen, Bram, Intven, Martijn P.W., Eppinga, Wietse S.C., Raaymakers, Bas W., Jürgenliemk-Schulz, Ina M., and Kroon, Petra S.

Published
2019

135. Feasibility of stereotactic radiotherapy using a 1.5 T MR-linac: Multi-fraction treatment of pelvic lymph node oligometastases

Author

Onderzoek Radiotherapie, Cancer, Klinische Fysica RT, MS Radiotherapie, Fysica Radiotherapie Research, Experimentele klinische fysica, Werensteijn-Honingh, Anita M, Kroon, Petra S, Winkel, Dennis, Aalbers, Ellart M, van Asselen, Bram, Bol, Gijsbert H, Brown, Kevin J, Eppinga, Wietse S C, van Es, Corine A, Glitzner, Markus, de Groot-van Breugel, Eline N, Hackett, Sara L, Intven, Martijn, Kok, Jan G M, Kontaxis, Charis, Kotte, Alexis N, Lagendijk, Jan J W, Philippens, Mariëlle E P, Tijssen, Rob H N, Wolthaus, Jochem W H, Woodings, Simon J, Raaymakers, Bas W, Jürgenliemk-Schulz, Ina M, Onderzoek Radiotherapie, Cancer, Klinische Fysica RT, MS Radiotherapie, Fysica Radiotherapie Research, Experimentele klinische fysica, Werensteijn-Honingh, Anita M, Kroon, Petra S, Winkel, Dennis, Aalbers, Ellart M, van Asselen, Bram, Bol, Gijsbert H, Brown, Kevin J, Eppinga, Wietse S C, van Es, Corine A, Glitzner, Markus, de Groot-van Breugel, Eline N, Hackett, Sara L, Intven, Martijn, Kok, Jan G M, Kontaxis, Charis, Kotte, Alexis N, Lagendijk, Jan J W, Philippens, Mariëlle E P, Tijssen, Rob H N, Wolthaus, Jochem W H, Woodings, Simon J, Raaymakers, Bas W, and Jürgenliemk-Schulz, Ina M

Published
2019

137. Adaptive radiotherapy: The Elekta Unity MR-linac concept

Author

Cancer, Fysica Radiotherapie Research, Klinische Fysica RT, Onderzoek Radiotherapie, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Bol, Gijsbert H, Kroon, Petra S, van Asselen, Bram, Hackett, Sara S, Werensteijn-Honingh, Anita M, Intven, Martijn P W, Eppinga, Wietse S C, Tijssen, Rob H N, Kerkmeijer, Linda G W, de Boer, Hans C J, Mook, Stella, Meijer, Gert J, Hes, Jochem, Willemsen-Bosman, Mirjam, de Groot-van Breugel, Eline N, Jürgenliemk-Schulz, Ina M, Raaymakers, Bas W, Cancer, Fysica Radiotherapie Research, Klinische Fysica RT, Onderzoek Radiotherapie, MS Radiotherapie, Experimentele klinische fysica, Winkel, Dennis, Bol, Gijsbert H, Kroon, Petra S, van Asselen, Bram, Hackett, Sara S, Werensteijn-Honingh, Anita M, Intven, Martijn P W, Eppinga, Wietse S C, Tijssen, Rob H N, Kerkmeijer, Linda G W, de Boer, Hans C J, Mook, Stella, Meijer, Gert J, Hes, Jochem, Willemsen-Bosman, Mirjam, de Groot-van Breugel, Eline N, Jürgenliemk-Schulz, Ina M, and Raaymakers, Bas W

Published
2019

139. Planning feasibility of extremely hypofractionated prostate radiotherapy on a 1.5 T magnetic resonance imaging guided linear accelerator

Author

Arts-assistenten Radiotherapie, Cancer, Klinische Fysica RT, MS Radiotherapie, Experimentele klinische fysica, den Hartogh, Mariska D., de Boer, Hans C.J., de Groot-van Breugel, Eline N., van der Voort van Zyp, Jochem R.N., Hes, Jochem, van der Heide, Uulke A., Pos, Floris, Haustermans, Karin, Depuydt, Tom, Jan Smeenk, Robert, Kunze-Busch, Martina, Raaymakers, Bas W., Kerkmeijer, Linda G.W., Arts-assistenten Radiotherapie, Cancer, Klinische Fysica RT, MS Radiotherapie, Experimentele klinische fysica, den Hartogh, Mariska D., de Boer, Hans C.J., de Groot-van Breugel, Eline N., van der Voort van Zyp, Jochem R.N., Hes, Jochem, van der Heide, Uulke A., Pos, Floris, Haustermans, Karin, Depuydt, Tom, Jan Smeenk, Robert, Kunze-Busch, Martina, Raaymakers, Bas W., and Kerkmeijer, Linda G.W.

Published
2019

141. Soft-tissue prostate intrafraction motion tracking in 3D cine-MR for MR-guided radiotherapy

Author

Radiotherapie, Fysica Radiotherapie Research, MS Radiotherapie, Cancer, Computational Imaging, Experimentele klinische fysica, Klinische Fysica RT, de Muinck Keizer, Daan M, Kerkmeijer, Linda G W, Maspero, Matteo, Andreychenko, Anna, van der Voort van Zyp, Jochem R N, Van den Berg, Cornelis A T, Raaymakers, Bas W, Lagendijk, Jan J W, de Boer, J C J, Radiotherapie, Fysica Radiotherapie Research, MS Radiotherapie, Cancer, Computational Imaging, Experimentele klinische fysica, Klinische Fysica RT, de Muinck Keizer, Daan M, Kerkmeijer, Linda G W, Maspero, Matteo, Andreychenko, Anna, van der Voort van Zyp, Jochem R N, Van den Berg, Cornelis A T, Raaymakers, Bas W, Lagendijk, Jan J W, and de Boer, J C J

Published
2019

142. Feasibility of MRI-only photon and proton dose calculations for pediatric patients with abdominal tumors

Author

Experimentele klinische fysica, Cancer, Klinische Fysica RT, MS Radiotherapie, Guerreiro, Filipa, Koivula, Lauri, Seravalli, Enrica, Janssens, Geert O, Maduro, John H, Brouwer, Charlotte L, Korevaar, Erik W, Knopf, Antje C, Korhonen, Juha, Raaymakers, Bas W, Experimentele klinische fysica, Cancer, Klinische Fysica RT, MS Radiotherapie, Guerreiro, Filipa, Koivula, Lauri, Seravalli, Enrica, Janssens, Geert O, Maduro, John H, Brouwer, Charlotte L, Korevaar, Erik W, Knopf, Antje C, Korhonen, Juha, and Raaymakers, Bas W

Published
2019

147. Particle Filter–Based Target Tracking Algorithm for Magnetic Resonance–Guided Respiratory Compensation: Robustness and Accuracy Assessment

Author

Bourque, Alexandra E., primary, Bedwani, Stéphane, additional, Carrier, Jean-François, additional, Ménard, Cynthia, additional, Borman, Pim, additional, Bos, Clemens, additional, Raaymakers, Bas W., additional, Mickevicius, Nikolai, additional, Paulson, Eric, additional, and Tijssen, Rob H.N., additional

Published
2018
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