Techniques that originate in computer graphics and computer vision have found prominent applications in the medical domain. In this paper, we have seamlessly developed techniques from computer graphics and computer vision together with domain knowledge from medicine to develop an image guided surgical system for medialization laryngoplasty. The technical focus of this paper is to register the preoperative radiological data to the intraoperative anatomical structure of the patient. With careful analysis of the real‐world surgical environment, we have developed an ICP‐based partial shape matching algorithm to register the partially visible anatomical structure to the preoperative CT data. We extracted distinguishable features from the human thyroid cartilage surface and applied image space template matching to find the initial guess for the shape matching. The experimental result shows that our feature‐based partial shape matching method has better performance and robustness compared with original ICP‐based shape matching method. Although this paper concentrates on the medialization laryngoplasty procedure, its generality makes our methods ideal for future applications in other image guided surgical areas. Copyright © 2009 John Wiley & Sons, Ltd.

中文翻译：

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图像引导内化喉成形术

源自计算机图形学和计算机视觉的技术在医学领域得到了突出的应用。在本文中，我们无缝地开发了计算机图形学和计算机视觉技术以及医学领域的知识，以开发用于内侧化喉成形术的图像引导手术系统。本文的技术重点是将术前放射学数据配准到患者的术中解剖结构。通过对真实手术环境的仔细分析，我们开发了一种基于 ICP 的局部形状匹配算法，将局部可见的解剖结构配准到术前 CT 数据。我们从人类甲状腺软骨表面提取可区分的特征，并应用图像空间模板匹配来找到形状匹配的初始猜测。实验结果表明，与原始的基于 ICP 的形状匹配方法相比，我们基于特征的局部形状匹配方法具有更好的性能和鲁棒性。尽管本文专注于内侧化喉成形术，但其普遍性使我们的方法非常适合未来在其他图像引导手术领域的应用。版权所有 © 2009 John Wiley & Sons, Ltd. 它的通用性使我们的方法非常适合未来在其他图像引导手术领域的应用。版权所有 © 2009 John Wiley & Sons, Ltd. 它的通用性使我们的方法非常适合未来在其他图像引导手术领域的应用。版权所有 © 2009 John Wiley & Sons, Ltd.