Letteratura scientifica selezionata sul tema "Multileaf collimator"

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Articoli di riviste sul tema "Multileaf collimator"

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Kim, Michele M., Douglas Bollinger, Chris Kennedy, Wei Zou, Ryan Scheuermann, Boon-Keng Kevin Teo, James M. Metz, Lei Dong, and Taoran Li. "Dosimetric Characterization of the Dual Layer MLC System for an O-Ring Linear Accelerator." Technology in Cancer Research & Treatment 18 (January 1, 2019): 153303381988364. http://dx.doi.org/10.1177/1533033819883641.

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Abstract (sommario):
The Halcyon is Varian’s latest linear accelerator that offers a single 6X flattening-filter-free beam with a jawless design that features a new dual layer multileaf collimator system with faster speed and reduced transmission. Dosimetric characteristics of the dual layer multileaf collimator system including transmission, dosimetric leaf gap, and tongue and groove effects were measured. Ionization chambers, diode arrays, and an electronic portal imaging device were used to measure various multileaf collimator characteristics. Transmission through both multileaf collimator banks was found to be
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Xin-ye, Ni, Lei Ren, Hui Yan, and Fang-Fang Yin. "Sensitivity of 3D Dose Verification to Multileaf Collimator Misalignments in Stereotactic Body Radiation Therapy of Spinal Tumor." Technology in Cancer Research & Treatment 15, no. 6 (July 9, 2016): NP25—NP34. http://dx.doi.org/10.1177/1533034615610251.

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Abstract (sommario):
Purpose: This study aimed to detect the sensitivity of Delt 4 on ordinary field multileaf collimator misalignments, system misalignments, random misalignments, and misalignments caused by gravity of the multileaf collimator in stereotactic body radiation therapy. Methods: (1) Two field sizes, including 2.00 cm (X) × 6.00 cm (Y) and 7.00 cm (X) × 6.00 cm (Y), were set. The leaves of X1 and X2 in the multileaf collimator were simultaneously opened. (2) Three cases of stereotactic body radiation therapy of spinal tumor were used. The dose of the planning target volume was 1800 cGy with 3 fraction
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Balog, J. P., T. R. Mackie, D. L. Wenman, M. Glass, G. Fang, and D. Pearson. "Multileaf collimator interleaf transmission." Medical Physics 26, no. 2 (February 1999): 176–86. http://dx.doi.org/10.1118/1.598501.

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Hyer, Daniel E., Laura C. Bennett, Theodore J. Geoghegan, Martin Bues, and Blake R. Smith. "Innovations and the Use of Collimators in the Delivery of Pencil Beam Scanning Proton Therapy." International Journal of Particle Therapy 8, no. 1 (June 1, 2021): 73–83. http://dx.doi.org/10.14338/ijpt-20-00039.1.

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Abstract (sommario):
Abstract Purpose The development of collimating technologies has become a recent focus in pencil beam scanning (PBS) proton therapy to improve the target conformity and healthy tissue sparing through field-specific or energy-layer–specific collimation. Given the growing popularity of collimators for low-energy treatments, the purpose of this work was to summarize the recent literature that has focused on the efficacy of collimators for PBS and highlight the development of clinical and preclinical collimators. Materials and Methods The collimators presented in this work were organized into 3 ca
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Smith, A., J. M. Galvin, and R. D. Moeller. "Evaluation of multileaf collimator design." International Journal of Radiation Oncology*Biology*Physics 17 (January 1989): 205–6. http://dx.doi.org/10.1016/0360-3016(89)90802-x.

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Fan, J., S. Hayes, J. Li, and C. Ma. "Multileaf Collimator Based Robotic Radiotherapy." International Journal of Radiation Oncology*Biology*Physics 81, no. 2 (October 2011): S857—S858. http://dx.doi.org/10.1016/j.ijrobp.2011.06.1525.

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Gauer, T., F. Cremers, E. Thom, T. Schoenborn, and R. Schmidt. "153 Electron beam collimation with an electron multileaf collimator (eMLC)." Radiotherapy and Oncology 76 (September 2005): S78. http://dx.doi.org/10.1016/s0167-8140(05)81129-6.

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Ślosarek, Krzysztof. "Dosimetry for linac with multileaf collimator." Reports of Practical Oncology 2, no. 2 (January 1997): 58. http://dx.doi.org/10.1016/s1428-2267(97)70145-5.

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Pönisch, Falk, Uwe Titt, Stephen F. Kry, Oleg N. Vassiliev, and Radhe Mohan. "MCNPX simulation of a multileaf collimator." Medical Physics 33, no. 2 (January 24, 2006): 402–4. http://dx.doi.org/10.1118/1.2163833.

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Galvin, James M., Alfred R. Smith, and Brian Lally. "Characterization of a multileaf collimator system." International Journal of Radiation Oncology*Biology*Physics 25, no. 2 (January 1993): 181–92. http://dx.doi.org/10.1016/0360-3016(93)90339-w.

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Tesi sul tema "Multileaf collimator"

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Greer, Peter Brian. "A dual assembly multileaf collimator for radiotherapy." Title page, table of contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09PH/09phg81659.pdf.

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Abstract (sommario):
Bibliography: leaves 241-250. A multileaf collimator for radiation therapy has been designed that splits each leaf bank into two vertically displaced assemblies or levels with each level consisting of alternate leaves and leaf spaces. The radiation profiles transmitted for image formation through the collimator design were investigated to examine their dependence on the collimator design features.
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Örn, Rafaela. "Measurement and modeling of the Multileaf collimator MLCi2." Thesis, KTH, Fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254434.

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Williams, Matthew John Physics Faculty of Science UNSW. "Investigations into static multileaf collimator based intensity modulated radiotherapy." Awarded by:University of New South Wales. Physics, 2005. http://handle.unsw.edu.au/1959.4/20577.

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Abstract (sommario):
Intensity Modulated Radiation Therapy (IMRT) is a modern radiotherapy treatment technique used to obtain highly conformal dose distributions. The delivery of IMRT is commonly achieved through the use of a multileaf collimator (MLC). One of the hindrances at present to the widespread use of IMRT is the increased time required for its planning, delivery and verification. In this thesis one particular method of MLC based IMRT, known as Static Multileaf Collimator based IMRT (SMLC-IMRT), has been studied along with methods for improving it???s delivery efficiency. The properties of an MLC comm
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Gélinas, Dominic. "Commissioning a dynamic multileaf collimator on a linear accelerator." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0023/MQ50775.pdf.

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Krauß, Andreas [Verfasser], and Uwe [Akademischer Betreuer] Oelfke. "Compensation of intra-fractional organ motion through multileaf collimator tracking / Andreas Krauß ; Betreuer: Uwe Oelfke." Heidelberg : Universitätsbibliothek Heidelberg, 2012. http://d-nb.info/1179783794/34.

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Inokuchi, Haruo. "Clinical effect of multileaf collimator width on the incidence of late rectal bleeding after high-dose intensity-modulated radiotherapy for localized prostate carcinoma." Kyoto University, 2016. http://hdl.handle.net/2433/215942.

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Moreno, Miriam Zarza. "Monte Carlo simulations for dosimetric verification in photon and electron beam radiotherapy." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/7835.

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Dissertação para obtenção do Grau de Doutor em Engenharia Biomédica<br>One of the primary requirements for successful radiotherapy treatments is the accurate calculation of dose distributions in the treatment planning process. Monte Carlo (MC) dose calculation algorithms are currently recognized as the most accurate method to meet this requirement and to increase even further dose accuracy. The improvements in computer processor technology and the development of variance reduction techniques for calculations have led to the recent implementation and use of MC algorithms for radiotherapy tre
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Rice, Brandon. "Methods for producing off-axis ratio tables from mini-multileaf collimator shaped circular fields for input into a stereotactic radiosurgery treatment planning system." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010840.

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Barker, Jennifer. "A comparison study of multileaf and micro-multileaf collimators /." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31188.

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The dosimetric characteristics of a standard Varian 52-leaf multileaf collimator (MLC) and BrainLAB m3 micro-multileaf collimator (micro-MLC) have been investigated for square, rectangular, and irregular fields for 6 MV and 18 MV photon beams provided by a Varian Clinac 2300 C/D linear accelerator (linac). The percentage depth dose data and the conventional collimator factor are unaffected by the addition of MLC or micro-MLC shaped field unless, in the latter case, the tertiary field is much less than the jaw setting. However, relative dose factors for a given MLC or micro-MLC field size depen
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Kamath, Srijit. "Algorithms for sequencing multileaf collimators." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011548.

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Libri sul tema "Multileaf collimator"

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Böhler, Andreas. Collimator-Based Tracking with an Add-On Multileaf Collimator. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-10658-4.

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Capitoli di libri sul tema "Multileaf collimator"

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Böhler, Andreas. "Literature Overview." In Collimator-Based Tracking with an Add-On Multileaf Collimator, 5–13. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-10658-4_1.

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Böhler, Andreas. "Materials & Methods." In Collimator-Based Tracking with an Add-On Multileaf Collimator, 15–35. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-10658-4_2.

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Böhler, Andreas. "Results." In Collimator-Based Tracking with an Add-On Multileaf Collimator, 37–44. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-10658-4_3.

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Böhler, Andreas. "Discussion." In Collimator-Based Tracking with an Add-On Multileaf Collimator, 45–47. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-10658-4_4.

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Georg, D., U. Wolff, R. F. E. Hartl, J. Moitzi, U. Haverkamp, and R. P�tter. "Commissioning of a Micro-Multileaf Collimator." In Controversies in Neuro-Oncology, 51–63. Basel: KARGER, 1999. http://dx.doi.org/10.1159/000061246.

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González, W., A. M. Lallena, and R. Alfonso. "Monte Carlo Simulation of a Micro-multileaf Collimator." In V Latin American Congress on Biomedical Engineering CLAIB 2011 May 16-21, 2011, Habana, Cuba, 1252–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-21198-0_318.

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Cambazard, Hadrien, Eoin O’Mahony, and Barry O’Sullivan. "Hybrid Methods for the Multileaf Collimator Sequencing Problem." In Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems, 56–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13520-0_9.

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Solberg, T. D., R. Fogg, M. T. Selch, and A. A. F. De Salles. "Conformal Radiosurgery Using a Dedicated Linac and Micro Multileaf Collimator." In Radiosurgery 1999, 53–63. Basel: KARGER, 1999. http://dx.doi.org/10.1159/000062298.

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Meeks, S. L., F. J. Bova, J. M. Buatti, W. A. Friedman, and S. Kim. "Clinical Dosimetry Considerations for a Doubled-Focused Miniature Multileaf Collimator." In Radiosurgery 1999, 83–90. Basel: KARGER, 1999. http://dx.doi.org/10.1159/000062302.

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Hamacher, Horst W., and Frank Lenzen. "A mixed integer programming approach to the multileaf collimator problem." In The Use of Computers in Radiation Therapy, 210–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-59758-9_78.

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Atti di convegni sul tema "Multileaf collimator"

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Zhou, Jie, Chaohui Zhang, Dong Zhou, and Hui Zhang. "Multileaf collimator for radiation therapy." In International Conference on Medical Engineering and Bioinformatics. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/meb140521.

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Harasimowicz, Janusz, Grzegorz Plebański, and Krzysztof Sajna. "Multileaf collimator for Coline medical accelerators." In SPIE Proceedings, edited by Ryszard S. Romaniuk. SPIE, 2007. http://dx.doi.org/10.1117/12.784726.

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Farr, J. B. "A multileaf collimator for neutron radiation therapy." In CYCLOCTRONS AND THEIR APPLICATIONS 2001: Sixteenth International Conference. AIP, 2001. http://dx.doi.org/10.1063/1.1435224.

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Janiszewska, Marzena, Dorota Dupla, and Grzegorz Nowakowski. "Application of multileaf collimator in breast cancer radiation techniques." In SPIE Proceedings, edited by Antoni Nowakowski and Bogdan B. Kosmowski. SPIE, 2004. http://dx.doi.org/10.1117/12.577930.

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Jing, Jia, Ruifen Cao, Xi Pei, Yican Wu, Guoli Li, and Hui Lin. "Optimization of Multileaf Collimator Leaf Sequences Based on Multiple Algorithms." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5514734.

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Wu, Q. Jackie, Zhiheng Wang, and Claudio H. Sibata. "Improving spatial resolution of multileaf-collimator-defined radiation treatment field." In Medical Imaging 2001, edited by Seong K. Mun. SPIE, 2001. http://dx.doi.org/10.1117/12.428112.

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Dan Ruan and Paul Keall. "Dynamic multileaf collimator control for motion adaptive radiotherapy: An optimization approach." In 2011 IEEE Power Engineering and Automation Conference (PEAM). IEEE, 2011. http://dx.doi.org/10.1109/peam.2011.6135024.

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Kulik, Carine, Maximilien Vermandel, Jean Rousseau, D. Gibon, and Salah Maouche. "Gamma knife, stereotactic linac radiosurgery, and micro multileaf collimator optimized treatment plan comparison." In Medical Imaging 2002, edited by Seong K. Mun. SPIE, 2002. http://dx.doi.org/10.1117/12.466913.

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Witten, Matthew R., and Owen C. Clancey. "A mimetic algorithm for simultaneous multileaf collimator aperture shape and dosimetric optimization in CyberKnife robotic radiosurgery." In 2015 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2015. http://dx.doi.org/10.1109/cec.2015.7257077.

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Juste, B., R. Miro, J. M. Campayo, S. Diez, and G. Verdu. "Nuclear MCNP simulation of the photoneutron dose contribution in linac radiotherapy treatments with multileaf collimation systems." In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154622.

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Rapporti di organizzazioni sul tema "Multileaf collimator"

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McKenna, W. G. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2005. http://dx.doi.org/10.21236/ada441861.

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McDonough, James, Chris Ainsley, Steven Avery, Derek Dolney, James Durgin, Richard Maughan, James Metz, Zelig Tochner, Arnaud Belard, and Yu Chen. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2010. http://dx.doi.org/10.21236/ada572209.

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Tochner, Zelig, Chris Ainsley, Maura Kirk, Derek Dolney, James McDonough, and Neha Vapiwala. Development of a Multileaf Collimator for Proton Therapy. Fort Belvoir, VA: Defense Technical Information Center, November 2012. http://dx.doi.org/10.21236/ada601961.

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McDonough, James. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2007. http://dx.doi.org/10.21236/ada573177.

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McDonough, James, Steven Avery, Peter Bloch, Dickson Goulart, Mark Ingram, Richard Maugham, James Metz, Joshua Scheuermann, Zelig Tochner, and Arnaud Belard. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2006. http://dx.doi.org/10.21236/ada573178.

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McKenna, W. G. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2011. http://dx.doi.org/10.21236/ada551932.

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Tochner, Zelig, James McDonough, Derek Dolney, Neha Vapiwala, and Ramesh Rengan. Development of a Multileaf Collimator for Proton Radiotherapy. Fort Belvoir, VA: Defense Technical Information Center, June 2012. http://dx.doi.org/10.21236/ada574243.

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Song, Yulin, and Steve B. Jiang. A Multileaf Collimator for Modulated Electron Radiation Therapy for Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, April 2002. http://dx.doi.org/10.21236/ada405423.

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Boyer, Arthur, Peter Biggs, James Galvin, Eric Klein, Thomas LoSasso, Daniel Low, Katherine Mah, and Cedric Yu. Basic Applications of Multileaf Collimators. AAPM, 2001. http://dx.doi.org/10.37206/71.

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