ManRay--Calculation of Organ Dose From Radiography

描述(由申请人提供)：目前还没有快速的方法 以及用于射线照相程序的可定制的剂量测定。建议数 Manray软件开发将为 计算所有诊断x射线程序的有效患者剂量。 只需几秒钟的用户输入即可指定 光子束，检查类型，模体性别和大小。全功能 模拟平面射线照相、CT(包括非连续切片和 门架倾斜)和透视(包括C形臂和工作台布置)将 包括在内。计算通过蒙特卡罗模拟执行，使用 公共领域提供的最先进的交通代码。模拟法 仅几分钟的时间就会导致统计精度达到&lt；3% 器官直接位于光束的路径上。BioMed Software的组合 辐射物理和计算机系统编码专业知识将 扩展第二阶段的工作，以包括其他模型大小、扩展的CT 应用和透视建模。也是在第二阶段广泛 将获得体模内剂量测量，以证明 Manray在平面和断层扫描中都能准确计算出剂量 情况。 建议的商业应用： 该软件将适用于全国所有放射科，也可能用于国际医院。考虑到与现有的器官剂量测定方法相比，Manray的预期灵活性、易用性和节省时间的方法，可以合理地假设这些部门中的相当一部分将利用该软件。其他潜在用户包括私人放射顾问和研究人员。

DESCRIPTION (Provided by Applicant): No methodology currently exists for rapid and customizable dose determination for radiographic procedures. The proposed ManRay software development will deliver user-friendly software for the calculation of effective patient dose from all diagnostic x-ray procedures. User input, requiring only a few seconds, will specify all characteristics of the photon beam, type of examination, phantom gender and size. Full capability of simulating planar radiography, CT (including non-contiguous slices and gantry tilt) and fluoroscopy (including C-arm and table arrangements) will be included. Calculations are performed via Monte Carlo simulation using a state-of-the-art transport code available in the public domain. Simulation times of only a few minutes lead to statistical accuracies of <3 percent for organs directly in the path of the beam. BioMed Software's combination of radiation physics and computer systems coding expertise and knowledge will expand the Phase II effort to include additional phantom sizes, expanded CT applications and fluoroscopy modeling. Also during Phase II extensive in-phantom dose measurements will be obtained to demonstrate the extent to which ManRay accurately calculates dose in both planar and tomographic situations. PROPOSED COMMERCIAL APPLICATION: This software will be of use to all Radiology departments in the country, and is also of potential use to hospitals internationally. Given the expected flexibility, ease of use, and time-savings approach of ManRay relative to existing approaches to organ dose determination, it is reasonable to assume a significant fraction of these departments will take advantage of the software. Other potential users include private radiological consultants and researchers.