On the accuracy of localization achievable in fiducial-based stereoscopic image registration system using an electronic portal imaging device [0.03%]
基于fiducial的立体图像登记系统利用电子影盘成像仪所能达到的精度研究
N M Ung,L Wee
N M Ung
Portal imaging using electronic portal imaging device (EPID) is a well-established image-guided radiation therapy (IGRT) technique for external beam radiation therapy. The aims of this study are threefold; (i) to assess the accuracy of isoc...
Development of digital reconstructed radiography software at new treatment facility for carbon-ion beam scanning of National Institute of Radiological Sciences [0.03%]
国立放射线医学综合研究所新碳离子束扫描治疗设施的数字重建放射软件开发
Shinichiro Mori,Taku Inaniwa,Motoki Kumagai et al.
Shinichiro Mori et al.
To increase the accuracy of carbon ion beam scanning therapy, we have developed a graphical user interface-based digitally-reconstructed radiograph (DRR) software system for use in routine clinical practice at our center. The DRR software i...
A Monte Carlo study on tissue dose enhancement in brachytherapy: a comparison between gadolinium and gold nanoparticles [0.03%]
蒙特卡罗研究中关于缓释治疗中的组织剂量增强情况： gadolinium与金纳米粒子的比较
Mohammad Taghi Bahreyni Toossi,Mahdi Ghorbani,Mohammad Mehrpouyan et al.
Mohammad Taghi Bahreyni Toossi et al.
The aim of this study was to quantify the dose enhancement by gadolinium and gold nanoparticles in brachytherapy. MCNPX Monte Carlo code was used to simulate four brachytherapy sources: (60)Co, (198)Au, (192)Ir, (169)Yb. To verify the accur...
Clinical assessment of dynamic coefficient of friction effects in shoe-sole trituration of patients with drop foot [0.03%]
评测动态摩擦系数对拖拽足症候群患者鞋底研磨的影响
Jamshidi Nima,Salami Firooz
Jamshidi Nima
The aim of this study was examining the effect of human factors such as plantar friction, contact period time, and impulse on shoe-sole trituration of drop foot patients. Twenty-five patients with drop foot and twenty normal subjects were r...
Combining the LKB NTCP model with radiosensitivity parameters to characterize toxicity of radionuclides based on a multiclonogen kidney model: a theoretical assessment [0.03%]
结合LKB NTCP模型与放射敏感参数基于多克隆肾模型表征放射性核素毒性：理论评估
Hui Lin,Jia Jing,Liangfeng Xu et al.
Hui Lin et al.
The Lyman-Kutcher-Burman (LKB) normal tissue complication probability (NTCP) model is often used to estimate the damage level to normal tissue. However, it does not manifestly involve the influence of radiosensitivity parameters. This work ...
J Luo,S Yau,S White et al.
J Luo et al.
Physics quality assurance (QA) is an integral part of a medical physicist's role in the radiotherapy centre. Management of physics QA documents is an issue with a long-term accumulation. Storage space, archive administration and paper consu...
Martin A Ebert,L N McDermott,A Haworth et al.
Martin A Ebert et al.
Variations in anatomical delineation, principally due to a combination of inter-observer contributions and image-specificity, remain one of the most significant impediments to geometrically-accurate radiotherapy. Quantification of spatial v...
Investigation of the haemodynamic environment of bifurcation plaques within the left coronary artery in realistic patient models based on CT images [0.03%]
基于CT图像的患者模型下左冠状动脉分叉处斑块血液动力学环境的研究
Thanapong Chaichana,Zhonghua Sun,James Jewkes
Thanapong Chaichana
The aim of this study was to investigate the plaques at the left coronary artery (LCA) and their effect on the haemodynamic and wall shear stress (WSS) in realistic patient models. Three sample patients with left coronary disease were selec...
Comparison of organ dosimetry methods and effective dose calculation methods for paediatric CT [0.03%]
儿科CT器官剂量学方法与有效剂量计算方法比较
Z Brady,T M Cain,P N Johnston
Z Brady
Computed tomography (CT) is the single biggest ionising radiation risk from anthropogenic exposure. Reducing unnecessary carcinogenic risks from this source requires the determination of organ and tissue absorbed doses to estimate detriment...
Optimisation of exposure conditions for in vitro radiobiology experiments [0.03%]
体外放射生物学实验的辐照条件优化方法研究
Elizabeth Claridge Mackonis,Natalka Suchowerska,Pourandokht Naseri et al.
Elizabeth Claridge Mackonis et al.
Despite the long history of using cell cultures in vitro for radiobiological studies, there is to date no study specifically addressing the dosimetric implications of flask selection and exposure environment in clonogenic assays. The conseq...