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International Journal of Radiation Research، جلد ۱۶، شماره ۴، صفحات ۳۹۵-۴۰۲
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Dose distributions of high-precision radiotherapy treatment: A comparison between the CyberKnife and TrueBeam systems
چکیده انگلیسی مقاله Background: Several high-precision stereotactic radiation therapy modalities are currently used in clinical settings. We aimed to evaluate whether the CyberKnife (CK) or TrueBeam (TB) radiation treatment systems were more appropriate for treating targets of various morphologies according to the physical properties of each device.  Materials and Methods: Spheres (diameter = 5–50 mm), as well as triangular prisms and cubes (length of a side = 10–50 mm), were used as virtual targets for each treatment delivery system. A phantom with dosimetry film was irradiated to evaluate the flatness and gradient of the radiation treatment from each modality. Results: The homogeneity index (HI) for the spherical targets was significantly higher (dose distribution was more homogeneous) using the TB than when using the CK (1.9 vs. 1.4; p = 0.002). There were no significant differences between treatment modalities in the HI for more complex shapes. The HI increased monotonically as the virtual target diameter increased for the CK (p = 0.048). The flatness parameter was lower for the TB than for the CK (1.4 vs. 1.1; p < 0.001). Conclusion: The CK is particularly robust for delivering therapeutic radiation to small targets, while the TB is more suitable for targets with a simple shape or when the HI is a critical treatment factor.    
کلیدواژه‌های انگلیسی مقاله Cyberknife, TrueBeam, homogeneity index, conformity index.
نویسندگان مقاله | M. Ito
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| T. Kawamura
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| Y. Mori
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| T. Mori
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| A. Takeuchi
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| Y. Oshima
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| K. Nakamura
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| T. Aoyama
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| N. Kaneda
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| T. Ishiguchi
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan


| S. Mizumatsu
Department of Radiology, Aichi Medical University, Yazako-Karimata, Nagakute, Aichi, Japan
نشانی اینترنتی http://ijrr.com/browse.php?a_code=A-10-1-739&slc_lang=en&sid=1
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/42/article-42-1167380.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده تحقیق بدیع
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