Department of Radiology, University of California San Diego Medical Center, 200 W Arbor Dr, San Diego, CA 92103-8756, USA.
Radiographics. 2013 Mar-Apr;33(2):E61-70. doi: 10.1148/rg.332125101. Epub 2012 Dec 21.
Review of prior and real-time patient images is critical during an interventional radiology procedure; however, it often poses the challenge of efficiently reviewing images while maintaining a sterile field. Although interventional radiologists can "scrub out" of the procedure, use sterile console covers, or verbally relay directions to an assistant, the ability of the interventionalist to directly control the images without having to touch the console could offer potential gains in terms of sterility, procedure efficiency, and radiation reduction. The authors investigated a potential solution with a low-cost, touch-free motion-tracking device that was originally designed as a video game controller. The device tracks a person's skeletal frame and its motions, a capacity that was adapted to allow manipulation of medical images by means of hand gestures. A custom software program called the Touchless Radiology Imaging Control System translates motion information obtained with the motion-tracking device into commands to review images on a workstation. To evaluate this system, 29 radiologists at the authors' institution were asked to perform a set of standardized tasks during a routine abdominal computed tomographic study. Participants evaluated the device for its efficacy as well as its possible advantages and disadvantages. The majority (69%) of those surveyed believed that the device could be useful in an interventional radiology practice and did not foresee problems with maintaining a sterile field. This proof-of-concept prototype and study demonstrate the potential utility of the motion-tracking device for enhancing imaging-guided treatment in the interventional radiology suite while maintaining a sterile field. Supplemental material available at http://radiographics.rsna.org/lookup/suppl/doi:10.1148/rg.332125101/-/DC1.
审查先前和实时的患者图像对于介入放射学程序至关重要；然而，在保持无菌区域的同时高效地审查图像往往具有挑战性。尽管介入放射学家可以“跳出”手术过程、使用无菌控制台盖或口头向助手传达指示，但介入医生无需触摸控制台即可直接控制图像的能力可能会在无菌性、手术效率和减少辐射方面带来潜在的收益。作者研究了一种潜在的解决方案，即使用一种低成本、非接触式运动跟踪设备，该设备最初是为视频游戏控制器而设计的。该设备跟踪人体骨骼框架及其运动，这种能力经过适应性改造，允许通过手势操作医学图像。一个名为“无接触放射成像控制系统”的定制软件程序将运动跟踪设备获取的运动信息转换为在工作站上查看图像的命令。为了评估该系统，作者所在机构的 29 名放射科医生被要求在常规腹部计算机断层扫描研究中执行一组标准化任务。参与者评估了该设备的有效性以及其可能的优点和缺点。接受调查的大多数人（69%）认为该设备在介入放射学实践中可能有用，并且不会预见在保持无菌区域方面出现问题。该概念验证原型和研究证明了运动跟踪设备在介入放射学套房中增强成像引导治疗的潜力，同时保持无菌区域。补充材料可在 http://radiographics.rsna.org/lookup/suppl/doi:10.1148/rg.332125101/-/DC1 上获得。
