Catheter tracking via online learning for dynamic motion compensation in transcatheter aortic valve implantation

Authors:
Peng Wang;Yefeng Zheng;Matthias John;Dorin Comaniciu
Affiliations:
Corporate Research and Technology, Siemens Corporation, Princeton, NJ;Corporate Research and Technology, Siemens Corporation, Princeton, NJ;Siemens AG, Healthcare Sector, Forchheim, Germany;Corporate Research and Technology, Siemens Corporation, Princeton, NJ
Venue:
MICCAI'12 Proceedings of the 15th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part II
Year:
2012

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Abstract

Dynamic overlay of 3D models onto 2D X-ray images has important applications in image guided interventions. In this paper, we present a novel catheter tracking for motion compensation in the Transcatheter Aortic Valve Implantation(TAVI). To address such challenges as catheter shape and appearance changes, occlusions, and distractions from cluttered backgrounds, we present an adaptive linear discriminant learning method to build a measurement model online to distinguish catheters from background. An analytic solution is developed to effectively and efficiently update the discriminant model and to minimize the classification errors between the tracking object and backgrounds. The online learned discriminant model is further combined with an offline learned detector and robust template matching in a Bayesian tracking framework. Quantitative evaluations demonstrate the advantages of this method over current state-of-the-art tracking methods in tracking catheters for clinical applications.