Continuous breath-hold assessment during breast radiotherapy using portal imaging [0.03%]
术中深吸气屏气状态的持续监控应用于乳腺癌放射治疗中的初步研究
Marcus Doebrich,Janine Downie,Joerg Lehmann
Marcus Doebrich
A multinational audit of small field output factors calculated by treatment planning systems used in radiotherapy [0.03%]
放射治疗中用于计算小型野输出因子的多个规划系统的跨国审计研究
Wolfgang Lechner,Paulina Wesolowska,Godfrey Azangwe et al.
Wolfgang Lechner et al.
Background and purpose: An audit methodology for verifying the implementation of output factors (OFs) of small fields in treatment planning systems (TPSs) used in radiotherapy was developed and tested through a multinatio...
Evaluation of localized region-based segmentation algorithms for CT-based delineation of organs at risk in radiotherapy [0.03%]
基于CT图像的放射治疗风险器官勾画的局部区域划分算法评估
Mehdi Astaraki,Mara Severgnini,Vittorino Milan et al.
Mehdi Astaraki et al.
Background and purpose: In radiation therapy, defining the precise borders of cancerous tissues and adjacent normal organs has a significant effect on the therapy outcome. Deformable models offer a unique and robust appro...
Leon de Prez,Stan Heukelom,Bartel Jansen et al.
Leon de Prez et al.
Background and purpose: External dosimetry audits are powerful quality assurance instruments for radiotherapy. The aim of this study was to implement an electron dosimetry audit based on a contemporary code of practice wi...
Comparison of complexity metrics for multi-institutional evaluations of treatment plans in radiotherapy [0.03%]
放射治疗多机构评估计划复杂性指标的比较
Victor Hernandez,Jordi Saez,Marlies Pasler et al.
Victor Hernandez et al.
Background and purpose: It is known that intensity-modulated radiotherapy plans that are highly complex might be less accurate in dose calculation and treatment delivery. Multiple complexity metrics have been proposed, bu...
Relationship between dosimetric leaf gap and dose calculation errors for high definition multi-leaf collimators in radiotherapy [0.03%]
高定义多叶准直器剂量学叶片缝隙与放射治疗剂量计算误差之间的关系研究
Jinkoo Kim,James S Han,An Ting Hsia et al.
Jinkoo Kim et al.
Background and purpose: Dosimetric leaf gap (DLG) is a parameter to model the round-leaf-end effect of multi-leaf collimators (MLC) that is important for treatment planning dose calculations in radiotherapy. In this study...
On the conversion of dose to bone to dose to water in radiotherapy treatment planning systems [0.03%]
放射治疗计划系统中骨剂量转换为水剂量的研究
Nick Reynaert,Frederik Crop,Edmond Sterpin et al.
Nick Reynaert et al.
Background and purpose: Conversion factors between dose to medium (Dm,m) and dose to water (Dw,w) provided by treatment planning systems that model the patient as water with variable electron density are currently based o...
Auditing local methods for quality assurance in radiotherapy using the same set of predefined treatment plans [0.03%]
利用一组预定义的治疗计划对放射治疗中本地方法的质量保证进行审计
Enrica Seravalli,Antonetta C Houweling,Leo Van Battum et al.
Enrica Seravalli et al.
Background and purpose: Local implementation of plan-specific quality assurance (QA) methods for intensity-modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) treatment plans may vary because of diss...
Evaluation of diffusion weighted imaging for tumor delineation in head-and-neck radiotherapy by comparison with automatically segmented 18F-fluorodeoxyglucose positron emission tomography [0.03%]
评估头部和颈部放射治疗中扩散加权成像肿瘤区别的18氟脱氧葡萄糖正电子发射断层扫描自动分割对比方法
Tim Schakel,Boris Peltenburg,Jan-Willem Dankbaar et al.
Tim Schakel et al.
Background and purpose: Diffusion weighted (DW) MRI may facilitate target volume delineation for head-and-neck (HN) radiation treatment planning. In this study we assessed the use of a dedicated, geometrically accurate, D...
Perfusion imaging of colorectal liver metastases treated with bevacizumab and stereotactic body radiotherapy [0.03%]
贝伐单抗联合立体定向体部放疗治疗结直肠肝转移的灌注成像评估
Jay S Detsky,Laurent Milot,Yoo-Joung Ko et al.
Jay S Detsky et al.
Stereotactic body radiotherapy (SBRT) and bevacizumab are used in the treatment of colorectal liver metastases. This study prospectively evaluated changes in perfusion of liver metastases in seven patients treated with both bevacizumab and ...