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Proceedings Paper

Simulation of ultrasound backscatter images from fish
Author(s): An Hoai Pham; Bjarne Stage; Martin Christian Hemmsen; Bo Lundgren; Mads Møller Pedersen; Tina Bock Pedersen; Jørgen Arendt Jensen
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Paper Abstract

The objective of this work is to investigate ultrasound (US) backscatter in the MHz range from fish to develop a realistic and reliable simulation model. The long term objective of the work is to develop the needed signal processing for fish 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 fish 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 fish 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 Hounsfield 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.

Paper Details

Date Published: 16 March 2011
PDF: 10 pages
Proc. SPIE 7961, Medical Imaging 2011: Physics of Medical Imaging, 796152 (16 March 2011); doi: 10.1117/12.878012
Show Author Affiliations
An Hoai Pham, Technical Univ. of Denmark (Denmark)
Bjarne Stage, Technical Univ. of Denmark (Denmark)
Martin Christian Hemmsen, Technical Univ. of Denmark (Denmark)
BK Medical (Denmark)
Bo Lundgren, Technical Univ. of Denmark (Denmark)
Mads Møller Pedersen, Technical Univ. of Denmark (Denmark)
Rigshospitalet (Denmark)
Tina Bock Pedersen, Rigshospitalet (Denmark)
Jørgen Arendt Jensen, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 7961:
Medical Imaging 2011: Physics of Medical Imaging
Norbert J. Pelc; Ehsan Samei; Robert M. Nishikawa, Editor(s)

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