Institute for Medical Image Computing, Fraunhofer MEVIS, Bremen, Germany.
Int J Med Robot. 2013 Mar;9(1):36-43. doi: 10.1002/rcs.1466. Epub 2012 Nov 28.
An alternative mode of interaction with navigation systems for open liver surgery was requested. Surgeons who use such systems are impeded by having to constantly switch between viewing the navigation system screen and the patient during an operation.
To this end, an auditory display system for open liver surgery is introduced with support for guiding the tracked instrument towards and remaining on a predefined resection line. To evaluate the method, a clinically orientated user study with 12 surgeons was conducted.
It is shown in qualitative results from the user study that the proposed auditory display is recognized as a useful addition to the current visual mode of interaction. It was revealed in a statistical analysis that participants spent less time looking on the screen (10% vs. 96%). Accuracy for resection guidance was significantly improved when using auditory display as an additional information channel (0.6 vs. 1.4 mm); however, the overall time for the resection task was shorter without auditory display (47 vs. 24 s).
By reducing dependence on the visual modality during resection guidance, the auditory display is well suited to become integrated in navigation systems for liver surgery.
需要一种与开放式肝脏手术导航系统的交互模式。使用此类系统的外科医生在手术过程中不得不不断在查看导航系统屏幕和查看患者之间切换，这给他们带来了阻碍。
为此，引入了一种用于开放式肝脏手术的听觉显示系统，该系统支持引导跟踪器械靠近并保持在预定义的切除线上。为了评估该方法，进行了一项具有 12 名外科医生的临床导向用户研究。
定性的用户研究结果表明，所提出的听觉显示被认为是对当前视觉交互模式的有用补充。统计分析表明，参与者在屏幕上的注视时间减少了（10%比 96%）。当将听觉显示作为附加信息通道使用时，切除引导的准确性显著提高（0.6 毫米比 1.4 毫米）；然而，在没有听觉显示的情况下，切除任务的总时间更短（47 秒比 24 秒）。
通过减少切除引导过程中对视觉模式的依赖，听觉显示非常适合集成到肝脏手术导航系统中。
