A robust meshing and calibration approach for sensorless freehand 3D ultrasound

Hassan Rivaz, Emad Boctor, Gabor Fichtinger

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

Abstract

The elevational distance between two ultrasound images can be obtained from the correlation between the two images, leading to sensorless freehand 3D ultrasound systems. Most of these systems rely on the correlation between patches of fully developed speckles (FDS). Previous work 1 has compared different FDS detectors and concluded that the elevational distance measurement limited to the FDS patches obtained by low order moment test yields significantly more accurate results than other FDS detectors. However, small coherent and FDS regions are spread throughout a typical ultrasound image of real tissue. This makes it extremely unlikely to find a regularly shaped (conventionally a rectangle) FDS patch, making it infeasible to estimate elevational distance accurately. 1 In this work, first we propose a simple and fast algorithm which is capable of detecting arbitrarily irregular FDS regions in an ultrasound image. In vitro experiments on beef liver, beef steak and chicken breast indicates that the proposed algorithm generates remarkably more FDS patches than the current methods. Preliminary results show that the FDS patches obtained by this algorithm generate more accurate elevational distance measurement. Second, we propose a new calibration scheme to generate decorrelation curves. At a particular location in the image, conventional methods acquire one decorrelation curve. We create multiple curves, as a function of particular statistical properties of the patch. The results reveal a theoretically expected relation between the decorrelation curve and the statistical properties of the patch. As a result of this calibration based on the patch statistical properties, improvement in the out of plane motion estimation is expected.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6513
DOIs
StatePublished - 2007
EventMedical Imaging 2007: Ultrasonic Imaging and Signal Processing - San Diego, CA, United States
Duration: Feb 18 2007Feb 19 2007

Other

OtherMedical Imaging 2007: Ultrasonic Imaging and Signal Processing
CountryUnited States
CitySan Diego, CA
Period2/18/072/19/07

Fingerprint

Speckle
Ultrasonics
Calibration
Beef
Distance measurement
Detectors
Motion estimation
Liver
Tissue

Keywords

  • 3D ultrasound
  • Fully developed speckle
  • Speckle decorrelation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Rivaz, H., Boctor, E., & Fichtinger, G. (2007). A robust meshing and calibration approach for sensorless freehand 3D ultrasound. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 6513). [651318] https://doi.org/10.1117/12.712423

A robust meshing and calibration approach for sensorless freehand 3D ultrasound. / Rivaz, Hassan; Boctor, Emad; Fichtinger, Gabor.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6513 2007. 651318.

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

Rivaz, H, Boctor, E & Fichtinger, G 2007, A robust meshing and calibration approach for sensorless freehand 3D ultrasound. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 6513, 651318, Medical Imaging 2007: Ultrasonic Imaging and Signal Processing, San Diego, CA, United States, 2/18/07. https://doi.org/10.1117/12.712423
Rivaz H, Boctor E, Fichtinger G. A robust meshing and calibration approach for sensorless freehand 3D ultrasound. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6513. 2007. 651318 https://doi.org/10.1117/12.712423
Rivaz, Hassan ; Boctor, Emad ; Fichtinger, Gabor. / A robust meshing and calibration approach for sensorless freehand 3D ultrasound. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6513 2007.
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