Simulation of ultrasound backscatter images from fish

An Hoai Pham, Bjarne Stage, Martin Christian Hemmsen, Bo Lundgren, Mads Møller Pedersen, Tina Bock Pedersen, Jørgen Arendt Jensen

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Abstract

The objective of this work is to investigate ultrasound (US) backscatter in the MHz range from fis to develop a realistic and reliable simulation model. The long term objective of the work is to develop the needed signal processing for fis species differentiation using US. In in-vitro experiments, a cod (Gadus morhua) was scanned with both a BK Medical ProFocus 2202 ultrasound scanner and a Toshiba Aquilion ONE computed tomography (CT) scanner. The US images of the fis were compared with US images created using the ultrasound simulation program Field II. The center frequency of the transducer is 10 MHz and the Full Width at Half Maximum (FWHM) at the focus point is 0.54 mm in the lateral direction. The transducer model in Field II was calibrated using a wire phantom to validate the simulated point spread function. The inputs to the simulation were the CT image data of the fis converted to simulated scatter maps. The positions of the point scatterers were assumed to be uniformly distributed. The scatter amplitudes were generated with a new method based on the segmented CT data in Hounsfiel Units and backscatter data for the different types of tissues from the literature. The simulated US images reproduce most of the important characteristics of the measured US image.
Original languageEnglish
Title of host publicationSPIE Medical Imaging 2011 : Physics of Medical Imaging
Number of pages10
PublisherSPIE - International Society for Optical Engineering
Publication date2011
PagesArticle Number: 796152
ISBN (Print)978-0-8194-8503-8
DOIs
Publication statusPublished - 2011
EventMedical Imaging 2011: Physics of Medical Imaging - Lake Buena Vista, (FL), United States
Duration: 13 Feb 201117 Feb 2011

Conference

ConferenceMedical Imaging 2011
CountryUnited States
CityLake Buena Vista, (FL)
Period13/02/201117/02/2011
SeriesProceedings of S P I E - International Society for Optical Engineering
Volume7961
ISSN0277-786X

Keywords

  • Ultrasound
  • Simulation
  • Acoustical properties
  • Small animal experiment
  • CT

Cite this

Pham, A. H., Stage, B., Hemmsen, M. C., Lundgren, B., Pedersen, M. M., Pedersen, T. B., & Jensen, J. A. (2011). Simulation of ultrasound backscatter images from fish. In SPIE Medical Imaging 2011: Physics of Medical Imaging (pp. Article Number: 796152). SPIE - International Society for Optical Engineering. Proceedings of S P I E - International Society for Optical Engineering, Vol.. 7961 https://doi.org/10.1117/12.878012