Beam's eye view (abbreviated BEV) is an imaging technique used in radiation therapy for quality assurance and planning of external beam radiotherapy (EBRT). These are primarily used to ensure that the relative orientation of the patient and the treatment machine are correct.

BEV（beam's eye view, BEV）在进行三维治疗计划时应用相当广泛，已成为目前治疗计划系统的标准工具。 它模拟位于射野焦点位置的光源将病人的三维解剖结构投影到后面与射线轴垂直的平面上，以便观察在特定的机器几何参数(机架角、床转角、光栏角和射野大小 ...

Beam's eye view is an approach to treatment planning that uses beams that are shaped to match the cross-section of the target volume as seen along the axis of the treatment beam from various angles. From: Prostate Cancer, 2003

RTStar系统采用双显示屏技术，其一为传统2D显示，即光束视图（beam's eye viem,BEV）,可提供肿瘤与OAR的重叠程度，以便物理师调整射野方向，减少此类重叠；另一为3D显示，即治疗间视图，可为物理师提供靶区及其周围OAR的深度感知，并通过3D等剂量表面视图和肿瘤 ...

摘要: 建立了一种新型融合Beam Eye View (BEV)/Beam Path View (BPV)信息的高分辨率快速磁共振成像方法。 选取3例肝转移磁共振引导放疗 (MRgRT)患者，采集同一患者使用腹部加压带限制腹部运动 (RAM组) 的运动管理模式下和自由呼吸 (FB组)模式下图像，共计31 200帧。 采用邻近肿瘤具有明确边界的血管进行肿瘤位置跟踪，计算其在95%置信区间下的径向矢量运动幅度差异 R95。 在BEV/BPV平面上RAM组和FB组在所有分次中的 R95的差异分别为：患者1均小于0.58 …

This study is to evaluate the feasibility of automated beam angle selection. Methods Genetic algorithm technique which based on beam eye view dose measurement (BEVD-GA) was tested on two clinical cases, including a spine column cancer and a lung eaneer.

2021年9月2日 · 射野 设置（beam arrangement/field） 主要评估放疗的射野设定和实施技术，这些技术包括简单的单野或对穿野照射乃至复杂的容积调强放射治疗技术（VMAT）等。放疗实施技术由放疗医生在制定计划之前确定，而射线束设定由剂量师确定。

Improving three-dimensional target definitions and dose delivery may improve local control rates in radiation therapy. Computed tomography (CT)-based treatment planning is one step toward achieving this goal, but further progress is possible with beam's eye view (BEV)-based planning.

2017年8月31日 · This first dedicated overview for beam’s eye view (BEV) covers instrumentation, methods, and clinical use of this exciting technology, which enables real-time anatomical imaging. It highlights how the information collected (e.g., the shape and size of the beam aperture and intensity of the beam) is used in the clinic for treatment ...

Portal radiographs are a fundamental part of the clinical quality-assurance program. They provide a beam's eye view record of the patient treatment volume, radiographically revealing the relationship between anatomical structures and the treatment field. There are three types of imaging systems available for acquiring portal radiographs: film ...