Gregory J. Wiet

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The Temporal Bone Dissection Simulator is an ongoing research project for the construction of a synthetic environment suitable for virtual dissection of human temporal bone and related anatomy. Funded by the National Institute on Deafness and Other Communication Disorders (NIDCD), the primary goal of this project is to provide a safe, robust, and(More)
PURPOSE Automatic scoring of resident performance on a virtual mastoidectomy simulation system is needed to achieve consistent and efficient evaluations. By not requiring immediate expert intervention, the system provides a completely objective assessment of performance as well as a self-driven user assessment mechanism. METHODS An iconic temporal bone(More)
Results Human cochlear normally has two and half turns. A pathological sample of a three-turn cochlea was sliced into 230 slides more than thirty years ago. Summary and Ongoing Work We present a pipeline for automatic registration of large set of microscopic images. We use a graph theoretical approach to match high-level features between consecutive(More)
Assessments of temporal bone dissection performance among otolaryngology residents have not been adequately developed. At the Ohio State College of Medicine, an instrument (Welling Scale, Version 1 [WS1]) is used to evaluate residents' end-product performance after drilling a temporal bone. In this study, the authors evaluate the components that contribute(More)
PURPOSE To report on the state of the art in obtaining high-resolution 3D data of the microanatomy of the temporal bone and to process that data for integration into a surgical simulator. Specifically, we report on our experience in this area and discuss the issues involved to further the field. DATA SOURCES Current temporal bone image acquisition and(More)
PURPOSE Development of a visualization system that provides surgical instructors with a method to compare the results of many virtual surgeries (n > 100). METHODS A masked distance field models the overlap between expert and resident results. Multiple volume displays are used side-by-side with a 2D point display. RESULTS Performance characteristics were(More)
In the effort to promote more continuous and quantitative assessment of surgical proficiency, there is an increased need to define and establish common surgical metrics. Furthermore, as various pressures such as limited duty hours and access to educational resources, including materials and expertise, place increased demands on training, the value of(More)