Wagner Markus, Dresing Klaus, Ludwig Wolfram, Ahrens Christoph Alexander, Bott Oliver J
Peter L. Reichertz Institute for Medical Informatics, TU Braunschweig, Germany.
Stud Health Technol Inform. 2012;180:968-72.
Scattered radiation caused by the intraoperative use of mobile image intensifier systems (referred to as "C-arms") is the main source of radiation exposure for operating room personnel and surgeons. To keep this possibly harmful exposure at a minimum level, a deliberate use of radiation, knowledge about distribution of scattered radiation and appropriate behavior pattern are indispensable. Therefore in several countries knowledge concerning these aspects is taught in mandatory courses on radiation protection. Currently this teaching is typically based on non-interactive didactical methods (texts, pictures and videos). Because of the complexity of the knowledge field this restriction might lead to an insufficient understanding of the facts, an inappropriate behavior and therefore to an avoidable radiation exposure. This paper presents a new software module, which is able to simulate and visualize intraoperative radiation distribution and the resulting dose values for the attending persons within a few seconds (less than 30s). The developed components, which simulate the radiation transport using a graphics processing unit three times faster than comparable approaches, were integrated exemplarily in the computer based C-arm training system virtX. This extended training system improves the teaching through a prompt visual feedback on non-trivial scattered radiation facts in freely adoptable situations.
术中使用移动影像增强系统（称为“C形臂”）所产生的散射辐射是手术室工作人员和外科医生辐射暴露的主要来源。为了将这种可能有害的暴露保持在最低水平，有意识地使用辐射、了解散射辐射的分布以及采取适当的行为模式是必不可少的。因此，在一些国家，关于这些方面的知识在辐射防护的必修课中讲授。目前，这种教学通常基于非交互式教学方法（文本、图片和视频）。由于知识领域的复杂性，这种限制可能导致对事实的理解不足、行为不当，从而导致可避免的辐射暴露。本文介绍了一个新的软件模块，它能够在几秒钟内（不到30秒）模拟并可视化术中辐射分布以及相关人员的辐射剂量值。所开发的组件使用图形处理单元模拟辐射传输的速度比同类方法快三倍，并以示例方式集成到基于计算机的C形臂训练系统virtX中。这个扩展的训练系统通过在可自由采用的情况下对重要的散射辐射事实提供即时视觉反馈来改进教学。
