Temat: treatment planning system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Independent verification of treatment planning system calculations
Autorzy:: Dąbrowska-Szewczyk, Edyta
Zawadzka, Anna
Brzozowska, Beata
Walewska, Agnieszka
Kukołowicz, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/2055675.pdf
Data publikacji:: 2021
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: 3D-conformal radiotherapy
treatment planning system
quality control
validation of dose calculation
pre-treatment verification
Opis:: Purpose: According to the available international recommendations, at least one independent verifi cation of the calculations of number of monitor unit (MU) is required for every patient treated by teleradiotherapy. The aim of this study was to estimate the differences of dose distributions calculated with two treatment planning systems: Eclipse (Varian) and Oncentra MasterPlan (Elekta). Materials and methods: The analysis was performed for 280 three-dimensional conformal radiotherapy treatment (3D-CRT) plans with photon beams from Varian accelerators: CL 600C/D X6 MV (109 plans), CL 2300C/D X6 MV (43 plans), and CL 2300C/D X15 MV (128 plans). The mean doses in the planning target volume (PTV) and doses at the isocenter point obtained with Eclipse and Oncentra MasterPlan (OMP) were compared with Wilcoxon matched-pairs signed rank test. Additionally, the treatment planning system (TPS) calculations were compared with dosimetric measurements performed in the inhomogeneous phantom. Results: Data were analysed for 6 MV plans and for 15 MV plans separately, independently of the treatment machine. The dose values calculated in Eclipse were significantly (p <0.001) higher compared to calculations of OMP system. The average difference of the mean dose to PTV was (1.4 ± 1.0)% for X6 MV and (2.5 ± 0.6)% for X15 MV. Average dose disparities at the isocenter point were (1.3 ± 1.9)% and (2.1 ± 1.0)% for X6 MV and X15 MV beams, respectively. The largest differences were observed in lungs, air cavities, and bone structures. Moreover the variation in dosimetric measurements was less as compared to Eclipse calculations. Conclusions: OMP calculations were introduced as the independent MU verification tool with the first action level range equal to 3.5%.
Źródło:: Nukleonika; 2021, 66, 2; 47--53
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Wirtualna radioterapia – nowe narzędzie w procesie edukacji fizyków medycznych
Virtual radiotherapy – a new tool in education process of medical physicists
Autorzy:: Buliński, Krzysztof
Kuszewski, Tomasz
Wnuk, Katarzyna
Kędzierawski, Piotr
Braziewicz, Janusz
Ślosarek, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/2146762.pdf
Data publikacji:: 2020
Wydawca:: Indygo Zahir Media
Tematy:: akcelerator
fantom pomiarowy
system planowania leczenia
wirtualna radioterapia
accelerator
measurement phantom
treatment planning system
virtual radiotherapy
Opis:: Fizyk medyczny to zawód, który wymaga umiejętności zastosowania metod fizyki w medycynie. Jeżeli dziedziną medycyny jest radioterapia, wówczas należy nauczyć się wykorzystania metod pomiarowych promieniowania jonizującego (dozymetria kliniczna) oraz informatyki (systemy planowania leczenia) w praktyce klinicznej. W procesie dydaktycznym wymagane jest wykorzystanie sprzętu medycznego, który jest w codziennym użytku. Pojawia się konflikt (pozorny), czy aparatura medyczna ma być wykorzystywana do celów edukacyjnych, czy też leczenia chorych. W okresie, kiedy informatyka i związana z nią technologia bardzo dynamicznie się rozwijają, kwestią czasu było pojawienie się wirtualnych akceleratorów, symulatorów. Rozwiązanie to bardzo ułatwia, z punktu widzenia organizacji pracy, proces szkolenia nie tylko fizyków medycznych, ale również lekarzy oraz elektroradiologów obsługujących aparaty terapeutyczne w radioterapii.
Medical physicist is a profession that requires the ability to apply physics methods in medicine. If the field of medicine is radiotherapy, then you should learn how to use radiation measurement methods (clinical dosimetry) and computer science (treatment planning systems) in clinical practice. The teaching process requires the use of medical equipment that is in use daily. There is a conflict (an apparent one) whether medical equipment is to be used for educational purposes or for treating patients. In the period when IT and related technology is developing very dynamically, it was just the matter of time when virtual accelerators, simulators appear. In such virtual reality we can use these programs to move virtual accelerator’s gantry, collimator... This solution greatly facilitates, from the point of view of work organization, the training process not only of medical physicists, but also doctors and technicians in radiotherapy.
Źródło:: Inżynier i Fizyk Medyczny; 2020, 9, 3; 153--158
2300-1410
Pojawia się w:: Inżynier i Fizyk Medyczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Improvement of the organizational and legal mechanism of medical support of the security and defense sector of Ukraine in crises based on NATO standards
Autorzy:: Bakai, Andrii
Kupriienko, Dmytro
Powiązania:: https://bibliotekanauki.pl/articles/1933924.pdf
Data publikacji:: 2020-12-31
Wydawca:: Wydawnictwo Adam Marszałek
Tematy:: integrated medical space of troops (forces)
interoperability
integrated treatment system
capability-based planning
principles and policy of health service support
military medicine reform
level system of medical support
control structure
Opis:: The article has considered the general principles and capabilities of the medical support of NATO troops, confirmed the expediency of further transformation of tasks and functions of the state in terms of medical support of troops (forces) of the security and defense sector of Ukraine in crises through the approximation to the relevant NATO standards, justified the need to implement the Euro-Atlantic experience of rendering medical care, use the general framework of categories and concepts, principles of the evaluation of capabilities (assets) of medical support which will contribute to the development of integrated medical space for medical defense of troops (forces) and elaboration of individual crisis response model taking into account the basic international requirements. The authors have determined the priority tasks of further cooperation between Ukraine and the North Atlantic Treaty Organization in the context of the reforms of medical logistics. It has been substantiated the need to keep reforming military medicine in conformity with NATO standards and recommendations that will promote an active involvement of medical services of troops (forces) in medical support of national and multi-domestic contingents during crises and adaptation of interoperable medical capabilities of joint missions under the auspices of NATO and the UN. The research has analyzed the mechanisms of interdepartmental coordination on medical support of troops (forces) and proved the feasibility of using the experience of NATO member states in the organization and functioning of the system of medical support of the military contingent with the adaptation of NATO doctrinal documents to the realities of modern Ukraine.
Źródło:: Reality of Politics; 2020, 14; 13-32
2082-3959
Pojawia się w:: Reality of Politics
Dostawca treści:: Biblioteka Nauki

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