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Versatile robotic probe calibration for position tracking in ultrasound imaging

Versatile robotic probe calibration for position tracking in ultrasound imaging

Category
Journal publication
Abstract
Within the field of ultrasound-guided procedures, there are a number of methods for ultrasound probe calibration. While these methods are usually developed for a specific probe, they are in principle easily adapted to other probes. In practice, however, the adaptation often proves tedious and this is impractical in a research setting, where new probes are tested regularly. Therefore, we developed a method which can be applied to a large variety of probes without adaptation. The method used a robot arm to move a plastic sphere submerged in water through the ultrasound image plane, providing a slow and precise movement. The sphere was then segmented from the recorded ultrasound images using a MATLAB programme and the calibration matrix was computed based on this segmentation in combination with tracking information. The method was tested on three very different probes demonstrating both great versatility and high accuracy.
Language
English
Author(s)
Affiliation
  • SINTEF Digital / Health Research
  • Helse Midt-Norge
  • Norwegian University of Science and Technology
Year
2015
Published in
Physics in Medicine and Biology
ISSN
0031-9155
Volume
60
Issue
9
Page(s)
3499 - 3513