New insights in the relative radiobiological effectiveness of proton irradiation
نویسندگان
چکیده
منابع مشابه
New insights in the relative radiobiological effectiveness of proton irradiation
BACKGROUND Proton radiotherapy is a form of charged particle therapy that is preferentially applied for the treatment of tumors positioned near to critical structures due to their physical characteristics, showing an inverted depth-dose profile. The sparing of normal tissue has additional advantages in the treatment of pediatric patients, in whom the risk of secondary cancers and late morbidity...
متن کاملEvaluation of the relative biological effectiveness of spot-scanning proton irradiation in vitro
Variations in relative biological effectiveness (RBE) from a fixed value of 1.1 are critical in proton beam therapy. To date, studies estimating RBE at multiple positions relative to the spread-out Bragg peak (SOBP) have been predominantly performed using passive scattering methods, and limited data are available for spot-scanning beams. Thus, to investigate the RBE of spot-scanning beams, Chin...
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رشد انفجاری تکنولوژی فرصت های آموزشی مهیج و جدیدی را پیش روی فراگیران و آموزش دهندگان گذاشته است. امروزه معلمان برای اینکه در امر آموزش زبان بروز باشند باید روش هایی را اتخاذ نمایند که درآن ها از تکنولوژی جهت کمک در یادگیری زبان دوم و چندم استفاده شده باشد. با در نظر گرفتن تحولاتی که رشته ی آموزش زبان در حال رخ دادن است هم اکنون زمان مناسبی برای ارزشیابی نگرش های موجود نسبت به تکنولوژی های جدید...
15 صفحه اولRadiobiological principles in intravascular irradiation.
BACKGROUND There is wide interest in the use of intravascular irradiation to control restenosis following balloon angioplasty. Part of the mechanism of restenosis appears to be the proliferation of smooth muscle cells (SMCs), triggered to divide by the damage caused by the angioplasty, and this proliferation can be inhibited by irradiation with y-rays or beta-rays. METHODS In vitro data for t...
متن کاملAnalysis of Relative Biological Effectiveness of Proton Beams and Iso-effective Dose Profiles Using Geant4
Background: The assessment of RBE quantity in the treatment of cancer tumors with proton beams in treatment planning systems (TPS) is of high significance. Given the significance of the issue and the studies conducted in the literature, this quantity is fixed and is taken as equal to 1.1.Objective: The main objective of this study was to assess RBE quantity of proton beams and their variations ...
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ژورنال
عنوان ژورنال: Radiation Oncology
سال: 2018
ISSN: 1748-717X
DOI: 10.1186/s13014-018-0954-9