style='font-family:Verdana;'> Electron, photon or proton beams are used in radiotherapy for cancer treatment while each one may be used depending on depth and the locat'/> Comparing Nasal Cavity Radiotherapy Using Electron, Photon, Proton and Photon-Electron Beams
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首页> 外文期刊>Journal of Cancer Therapy >Comparing Nasal Cavity Radiotherapy Using Electron, Photon, Proton and Photon-Electron Beams
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Comparing Nasal Cavity Radiotherapy Using Electron, Photon, Proton and Photon-Electron Beams

机译：比较使用电子束，光子束，质子束和光子电子束进行的鼻腔放疗

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>Aim:>> style="font-family:""> style="font-family:Verdana;"> Electron, photon or proton beams are used in radiotherapy for cancer treatment while each one may be used depending on depth and the location of tumor and normal tissues around the treatment target as well as economic issues. style="font-family:Verdana;">Materials and Methods: style="font-family:Verdana;"> In this research, dose distribution by proton was measured by film dosimetry in nasal cavity Plexiglas phantom and Monte Carlo simulation. Then the DVH of treatment target and the posterior of treatment target of different beams were compared. The energies of electron, photon and proton were 9 MeV, 6 MV, and maximum 65 MeV, respectively. Due to a depth of 3.5 cm of CTV (Clinical Target Volume), Modulation Range was between 0>> style="font-family:""> style="font-family:Verdana;"> style="font-family:Verdana;"> style="font-family:Verdana;">->> style="font-family:""> style="font-family:Verdana;"> style="font-family:Verdana;"> style="font-family:Verdana;">3.5 cm and SOBP (Spread-out Bragg Peak) was between 0>> style="font-family:""> style="font-family:Verdana;"> style="font-family:Verdana;"> style="font-family:Verdana;">->> style="font-family:""> >> style="font-family:""> style="font-family:Verdana;">65 MeV. style="font-family:Verdana;">Results: style="font-family:Verdana;"> Comparing the obtained DVH values, 95% dose coverage of target volume for electron, photon, proton and Photon-Electron beams were 88%, 98%, 98%, and 95%, respectively. However, doses above 40% that reached outside the target were 50%, 82%, 5%, and 44%, respectively. style="font-family:Verdana;">Conclusions: style="font-family:Verdana;"> The results demonstrate the superiority of proton therapy in nasal cancer due to its better target volume coverage and the less amount of the dose reaching outside the target that is because of dose discharge in a small area and significant dose fall-off after Bragg peak.
机译：>目标： > > style =“ font-family：”“> style =” font-family：Verdana;“>电子，光子或质子束用于放射治疗进行癌症治疗时，可根据治疗目标周围的肿瘤和正常组织的深度和位置以及经济问题使用每种药物。 style =“ font-family：Verdana;”>材料与方法： style =“ font-family：Verdana;”>在这项研究中，通过膜剂量法在鼻腔有机玻璃体模中进行了质子剂量分布的测量，并进行了蒙特卡洛模拟。比较了不同束的治疗目标的DVH和治疗目标的后方，由于CTV的深度为3.5 cm，电子，光子和质子的能量分别为9 MeV，6 MV和最大65 MeV。音量），调制范围在0 > > style =“ font-family：”“> style =“ font-family：Verdana;”> styl e =“ font-family：Verdana;”> style =“ font-family：Verdana;”>- > > style =“ font- family：“”> style =“ font-family：Verdana;”> style =“ font-family：Verdana;”> style =“ font- family：Verdana;“> 3.5厘米，SOBP（展​​开式布拉格峰）在0 > > style =” font-family：“”> style =“ font-family：Verdana;”> style =“ font-family：Verdana;”> style =“ font-family：Verdana;” >- > > style =“ font-family：”“> > > style =“ font-family：”“> style =” font-family：Verdana;“> 65 MeV。 style =“ font-family：Verdana;”>结果： style =“ font-family：Verdana;”>比较获得的DVH值，95电子束，光子束，质子束和光子电子束的目标体积的剂量覆盖率分别为88％，98％，98％和95％。但是，达到目标的40％以上剂量分别为50％，82％，5％和44％。 style =“ font-family：Verdana;”>结论： style =“ font-family：Verdana;”>结果证明了质子的优越性鼻癌的目标体积覆盖率更高，并且到达靶区外的剂量更少，这是由于鼻腔小剂量释放和布拉格峰后剂量明显下降所致。

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