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Proceedings Paper

Using data fusion to characterize breast tissue
Author(s): Nebojsa Duric; Peter J. Littrup; Richard Leach; Steve G. Azevedo; James V. Candy; Thomas Moore; David H. Chambers; Jeffrey E. Mast; Earle Holsapple
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Paper Abstract

New ultrasound data, obtained with a circular experimental scanner, are compared with data obtained with standard X-ray CT. Ultrasound data obtained by scanning fixed breast tissue were used to generate images of sound speed and reflectivity. The ultrasound images exhibit approximately 1 mm resolution and about 20 dB of dynamic range. All data were obtained in a circular geometry. X-ray CT scans were used to generate X-ray images corresponding to the same 'slices' obtained with the ultrasound scanner. The good match of sensitivity, resolution and angular coverage between the ultrasound and X-ray data makes possible a direct comparison of the three types of images. We present the results of such a comparison for an excised breast fixed in formalin. The results are presented visually using various types of data fusion. A general correspondence between the sound speed, reflectivity and X-ray morphologies is found. The degree to which data fusion can help characterize tissue is assessed by examining the quantitative correlations between the ultrasound and X-ray images.

Paper Details

Date Published: 11 April 2002
PDF: 8 pages
Proc. SPIE 4687, Medical Imaging 2002: Ultrasonic Imaging and Signal Processing, (11 April 2002); doi: 10.1117/12.462167
Show Author Affiliations
Nebojsa Duric, Univ. of New Mexico (United States)
Peter J. Littrup, Karmanos Cancer Institute (United States)
Richard Leach, Lawrence Livermore National Lab. (United States)
Steve G. Azevedo, Lawrence Livermore National Lab. (United States)
James V. Candy, Lawrence Livermore National Lab. (United States)
Thomas Moore, Lawrence Livermore National Lab. (United States)
David H. Chambers, Lawrence Livermore National Lab. (United States)
Jeffrey E. Mast, Lawrence Livermore National Lab. (United States)
Earle Holsapple, Karmanos Cancer Institute (United States)


Published in SPIE Proceedings Vol. 4687:
Medical Imaging 2002: Ultrasonic Imaging and Signal Processing
Michael F. Insana; William F. Walker, Editor(s)

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