Versatile robotic probe calibration for position tracking in ultrasound imaging

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 i...

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Bibliographic Details
Published in:Physics in medicine & biology 2015-05, Vol.60 (9), p.3499-3513
Main Authors: Bø, Lars Eirik, Hofstad, Erlend Fagertun, Lindseth, Frank, Hernes, Toril A N
Format: Article
Language:English
Subjects:
3D ultrasound
Algorithms
Calibration
image-guided surgery
Phantoms, Imaging
position tracking
probe calibration
Robotics - instrumentation
Robotics - methods
Ultrasonography - methods
Ultrasonography - standards
ultrasound imaging
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Summary: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.
ISSN:0031-9155
1361-6560
DOI:10.1088/0031-9155/60/9/3499