Experimental assessment of error in an electromagnetically-tracked ultrasound-guided needle navigation system

Irene Ayukawa, Tamas Ungi, Keyvan Hashtrudi-Zaad, Gabor Fichtinger, Parvin Mousavi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Purpose: Electromagnetic (EM)-tracked ultrasound (US)-guided needle navigation systems have potential use in spinal interventions; however, an assessment of the accuracy of these systems is required. Analysis of these systems involves examining the overall error of the system and the error of its components. The purpose of this study is to estimate the error components in an EM-tracked US-guided needle navigation system, and to determine the relationships between them, speci cally for evaluation of US probe calibration. Methods: The main parts of the experimental setup are the US probe, the tracker, and the needle. The system error is examined by imaging the tracked needle with the US probe. The positional tracking error is tested for multiple needle, probe and reference sensors using a 7x9 grid with 4 cm spacing between points. Needle calibration error is evaluated by pivot calibration. An upper bound for the probe calibration error is then estimated using a series of transformations between the tracker and the needle tip position. Results: For all experiments, the mean error and its standard deviation increase as a function of distance from the tracker. The upper-bound of the US probe calibration error is estimated to be 1.81 mm. Conclusion: Operating distance has signi cant impact on component error, and the optimal operating distance for the presented setup has been shown. Although US probe calibration error cannot be measured directly, its upper-bound has been estimated by assessing the errors in other components of the system.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8671
DOIs
StatePublished - 2013
Externally publishedYes
EventMedical Imaging 2013: Image-Guided Procedures, Robotic Interventions, and Modeling - Lake Buena Vista, FL, United States
Duration: Feb 12 2013Feb 14 2013

Other

OtherMedical Imaging 2013: Image-Guided Procedures, Robotic Interventions, and Modeling
CountryUnited States
CityLake Buena Vista, FL
Period2/12/132/14/13

Keywords

  • Electromagnetic tracking
  • Error assessment
  • Needle navigation
  • Ultrasound guidance

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Experimental assessment of error in an electromagnetically-tracked ultrasound-guided needle navigation system'. Together they form a unique fingerprint.

  • Cite this

    Ayukawa, I., Ungi, T., Hashtrudi-Zaad, K., Fichtinger, G., & Mousavi, P. (2013). Experimental assessment of error in an electromagnetically-tracked ultrasound-guided needle navigation system. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8671). [867124] https://doi.org/10.1117/12.2007160