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Proceedings Paper

Ultrasound calibration framework for the image-guided surgery toolkit (IGSTK)
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Paper Abstract

Registration is a key technology in image-guided navigation systems. By aligning pre-operative images with the intra-operative setting these systems provide visual feedback that improves the physician's understanding of the spatial relationships between anatomical structures and surgical tools. Most often the alignment is obtained using fiducials. Another option is to replace the use of fiducials with intra-operative imaging. Two dimensional ultrasound (US) is a widely available intra-operative non-ionizing imaging modality. To utilize this modality for registration one must first perform spatial calibration of the US. In this work we describe the implementation of three spatial calibration methods as part of the image-guided surgery toolkit (IGSTK). The implementation follows the IGSTK calibration framework, separating algorithmic aspects from user interaction aspects of the calibration. Our calibration framework includes three methods. The first is a phantom-less method using a tracked pointer tool in addition to the tracked US, the second method uses a cross-wire phantom, and the third method is based on the use of a plane phantom.

Paper Details

Date Published: 1 March 2011
PDF: 11 pages
Proc. SPIE 7964, Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling, 79641N (1 March 2011); doi: 10.1117/12.879011
Show Author Affiliations
Ziv Yaniv, Georgetown Univ. Medical Ctr. (United States)
Pezhman Foroughi, The Johns Hopkins Univ. (United States)
Hyun-Jae Kang, The Johns Hopkins Univ. (United States)
Emad Boctor, The Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 7964:
Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; David R. Holmes III, Editor(s)

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