PURPOSE To examine the feasibility of a novel technology platform that enables real-time touchless interaction with radiology images in both a simulated and an actual clinical setting. MATERIALS AND METHODS This platform offers three different modes for image interaction. The gesture recognition mode uses a depth camera to detect the user's hand gestures which are translated to image manipulation commands. The light projection mode uses the same camera to detect finger point-and-tap movements above the icons which are projected on a surface to activate the commands. The capacitive sensing mode is enabled by a handheld, portable device, over which finger movements are detected by capacitive sensors to control the image review. Following initial feedback, light projection and capacitive sensing modes were selected for further testing by comparing with the conventional mode of image interaction in time trials for performing a series of standardized image manipulation tasks. Finally, the usability of the technology platform was examined in actual clinical procedures. RESULTS The light projection and the capacitive sensing modes were evaluated in the time trials and exhibited 60% and 71% reduction in time, respectively, relative to the control mode (p < 0.001). Clinical feasibility for this platform was demonstrated in three actual interventional radiology cases. CONCLUSION Accessing, navigating, and extracting relevant information from patient images intraprocedurally are cumbersome and time-consuming tasks that affect safety, efficiency, and decision-making during image-guided procedures. This study demonstrated that the novel technology addressed this issue by allowing touchless interaction with these images in the sterile field.

中文翻译：

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用于过程内成像检查的新型非接触式界面的实验评估。

目的研究新颖技术平台的可行性，该平台能够在模拟和实际临床环境中与放射线图像进行实时非接触式交互。材料和方法该平台提供了三种不同的图像交互模式。手势识别模式使用深度相机检测用户的手势，这些手势被转换为图像操作命令。光线投射模式使用同一台摄像机来检测图标上方的手指点击动作，这些图标投射在表面上以激活命令。电容式感应模式由手持便携式设备启用，在该设备上，电容式传感器检测手指的移动，以控制图像浏览。收到初步反馈后，在执行一系列标准化图像操作任务的时间试验中，通过与传统的图像交互模式进行比较，选择了光投射和电容感应模式进行进一步测试。最后，在实际临床程序中检查了该技术平台的可用性。结果在时间试验中评估了光投射和电容感测模式，与控制模式相比，时间分别减少了60％和71％（p <0.001）。在三个实际的介入放射学案例中证明了该平台的临床可行性。结论进行过程内访问，导航和从患者图像中提取相关信息是繁琐且耗时的任务，会影响图像引导过程中的安全性，效率和决策制定。