Faculty of Information Technology and Communication Sciences, Tampere University, Kalevantie 4, 33014, Tampere, Finland.
Medical Imaging Centre, Department of Radiology, Tampere University Hospital, Teiskontie 35, 33520, Tampere, Finland.
Int J Comput Assist Radiol Surg. 2022 Sep;17(9):1723-1730. doi: 10.1007/s11548-022-02693-1. Epub 2022 Jun 22.
Many surgical complications can be prevented by careful operation planning and preoperative evaluation of the anatomical features. Virtual dental implant planning in three-dimensional stereoscopic virtual reality environment has advantages over three-dimensional projections on two-dimensional screens. In the virtual environment, the anatomical areas of the body can be assessed and interacted with in six degrees-of-freedom. Our aim was to make a preliminary evaluation of how professional users perceive the use of the virtual environment on their field.
We prepared a novel implementation of a virtual dental implant planning system and conducted a small-scale user study with four dentomaxillofacial radiologists to evaluate the usability of direct and indirect interaction in a planning task.
We found that all four participants ranked direct interaction, planning the implant placement without handles, to be better than the indirect condition where the implant model had handles.
The radiologists valued the three-dimensional environment for three-dimensional object manipulation even if usability issues of the handles affected the feel of use and the evaluation results. Direct interaction was seen as easy, accurate, and natural.
通过仔细的手术规划和术前对解剖特征的评估，可以预防许多手术并发症。在三维立体虚拟现实环境中进行虚拟牙种植体规划优于二维屏幕上的三维投影。在虚拟环境中，可以在六个自由度内评估和交互身体的解剖区域。我们的目的是初步评估专业用户如何感知虚拟环境在其领域的使用。
我们准备了一种新的虚拟牙种植体规划系统的实现，并对四名口腔颌面放射科医生进行了小规模的用户研究，以评估在规划任务中直接和间接交互的可用性。
我们发现，所有四名参与者都将直接交互（无需手柄即可规划植入物放置）的方式评为比间接方式（带有手柄的植入物模型）更好。
放射科医生重视三维环境进行三维物体操作，即使手柄的可用性问题影响了使用感和评估结果。直接交互被认为是简单、准确和自然的。
