Maier Thomas, Strauss Gero, Bauer Franz, Grasser Andreas, Hata Nobuhiko, Lueth Tim C
Institute of Microtechnology and Medical Device Technology (MiMed), Technische Universität München, Germany.
Med Image Comput Comput Assist Interv. 2011;14(Pt 1):41-8. doi: 10.1007/978-3-642-23623-5_6.
In this article, a new tool for the intraoperative measurement of distances within the middle ear by means of a micromanipulator is presented. The purpose of this work was to offer the surgeon a highly accurate tool for measuring the distances between two points in the 3D operational field. The tool can be useful in various operations; this article focuses, however, on measuring the distance between the stapes footplate and the long process of the incus of the middle ear. This distance is important for estimating the proper prosthesis length in stapedotomy for treating otosclerosis. We evaluated the system using a simplified mechanical model. Our results show that the system can measure distances with a maximum error of 0.04 mm.
本文介绍了一种借助微操纵器在中耳内进行术中距离测量的新工具。这项工作的目的是为外科医生提供一种用于在三维手术视野中测量两点之间距离的高精度工具。该工具可用于各种手术；然而，本文重点关注测量中耳镫骨足板与砧骨长突之间的距离。此距离对于估算治疗耳硬化症的镫骨切除术假体的合适长度很重要。我们使用简化的力学模型对该系统进行了评估。我们的结果表明，该系统测量距离的最大误差为0.04毫米。
