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Publication Detail
Spatial calibration of a 2D/3D ultrasound using a tracked needle
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Vasconcelos F, Peebles D, Ourselin S, Stoyanov D
  • Publication date:
  • Pagination:
    1091, 1099
  • Journal:
    International Journal of Computer Assisted Radiology and Surgery
  • Volume:
  • Issue:
  • Status:
  • Print ISSN:
© 2016, The Author(s).Purpose: Spatial calibration between a 2D/3D ultrasound and a pose tracking system requires a complex and time-consuming procedure. Simplifying this procedure without compromising the calibration accuracy is still a challenging problem. Method: We propose a new calibration method for both 2D and 3D ultrasound probes that involves scanning an arbitrary region of a tracked needle in different poses. This approach is easier to perform than most alternative methods that require a precise alignment between US scans and a calibration phantom. Results: Our calibration method provides an average accuracy of 2.49 mm for a 2D US probe with 107 mm scanning depth, and an average accuracy of 2.39 mm for a 3D US with 107 mm scanning depth. Conclusion: Our method proposes a unified calibration framework for 2D and 3D probes using the same phantom object, work-flow, and algorithm. Our method significantly improves the accuracy of needle-based methods for 2D US probes as well as extends its use for 3D US probes.
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