Continuous endoscopic guidance via interleaved video tracking and image-video registration

被引：1
|
作者：
Rai, Lav [1 ]
Higgins, William E. [1 ]
机构：
[1] Penn State Univ, Dept Comp Sci & Engn, University Pk, PA 16802 USA
来源：
MEDICAL IMAGING 2008: VISUALIZATION, IMAGE-GUIDED PROCEDURES, AND MODELING, PTS 1 AND 2 | 2008年 / 6918卷
关键词：
registration; endoscopic procedures; image-guided endoscopy; virtual bronchoscopy;
D O I：
10.1117/12.768702
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Endoscopic needle biopsy requires off-line 3D computed-tomography (CT) chest image analysis to plan a biopsy site followed by live endoscopy to perform the biopsy. We present a method for continuous image-based endoscopic guidance that interleaves periodic normalized-mutual-information-based CT-video registration with optical-flow-based endoscopic video motion tracking. The method operates at a near real-time rate and was successfully tested on endoscopic video sequences for phantom and human lung-cancer cases. We also illustrate its use when incorporated into a complete system for image-based planning and guidance of endoscopy.
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收藏
页数：14
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