Hybrid Navigation Interface for Orthopedic and Trauma Surgery

Abstract

Abstract. Several visualization methods for intraoperative navigation systems were proposed in the past. In standard slice based navigation, three dimensional imaging data is visualized on a two dimensional user interface in the surgery room. Another technology is the in-situ visualization i.e. the superimposition of imaging data directly into the view of the surgeon, spatially registered with the patient. Thus, the three dimensional information is represented on a three dimensional interface. We created a hybrid navigation interface combining an augmented reality visualization system, which is based on a stereoscopic head mounted display, with a standard two dimensional navigation interface. Using an experimental setup, trauma surgeons performed a drilling task using the standard slice based navigation system, different visualization modes of an augmented reality system, and the combination of both. The integration of a standard slice based navigation interface into an augmented reality visualization overcomes the shortcomings of both systems.

Towards Intra-operative 3D Nuclear Imaging: Reconstruction of 3D Radioactive Distributions Using Tracked Gamma Probes

“…The most adequate choice of visualization was not part of the scope of this work, however it is subject of evaluation within our group [13].…”

Action- and Workflow-Driven Augmented Reality for Computer-Aided Medical Procedures

“…We jointly came to the conclusion that, for specific surgical tasks, hybrid user interfaces that appropriately combine orthogonal slice views and in-situ visualization could provide new optimal solutions. 4 We continue developing and evaluating new visualization paradigms to appropriately integrate the virtual and real views, taking the objectives and actions of the surgeons into account. We therefore propose a set of workflow-and action-driven visualization techniques to improve surgeons' depth perception in a mixed environment (see Figure 5).…”

Hybrid Navigation Interface A Comparative Study

“…The three different navigation methods designed for this study are shown in figure 2. We have decided to employ a in-situ visualisation method where two orthogonal slices are rendered along the longitudinal axis of an instrument, as this is, according to previous studies [6], a convenient guidance aid, especially regarding lateral positioning. Three surgeons conducted the experiment ten times for each of the three navigation methods.…”

“…The navigation methods evaluated are monitor based navigation (MPR), in-situ visualisation (AR) and a hybrid combination of both (HYBRID). * denotes an experiment performed with the same surgeons under comparable conditions [6] Navigation position the drill and reach the given target region. The results of the experiment are summarised in table 1.…”