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Image guided medialization laryngoplasty
Author(s) -
Jin Ge,
Baek Nakhoon,
Hahn James K.,
Bielamowicz Steven,
Mittal Rajat,
Walsh Raymond
Publication year - 2009
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.271
Subject(s) - computer science , computer vision , artificial intelligence , computer graphics , feature (linguistics) , image registration , template matching , domain (mathematical analysis) , matching (statistics) , focus (optics) , image (mathematics) , medicine , mathematical analysis , philosophy , linguistics , physics , mathematics , pathology , optics
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.