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International Journal of Biomedical Imaging
Volume 2007 (2007), Article ID 40980, 8 pages
http://dx.doi.org/10.1155/2007/40980
Research Article

Integration of Vibro-Acoustography Imaging Modality with the Traditional Mammography

1School of Engineering, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
2Deptartment of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester 55905, MN, USA

Received 1 May 2006; Revised 29 November 2006; Accepted 12 December 2006

Academic Editor: Haim Azhari

Copyright © 2007 H. Gholam Hosseini et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Vibro-acoustography (VA) is a new imaging modality that has been applied to both medical and industrial imaging. Integrating unique diagnostic information of VA with other medical imaging is one of our research interests. In this work, we establish correspondence between the VA images and traditional X-ray mammogram by adopting a flexible control-point selection technique for image registration. A modified second-order polynomial, which simply leads to a scale/rotation/translation invariant registration, was used. The results of registration were used to spatially transform the breast VA images to map with the X-ray mammography with a registration error of less than 1.65 mm. The fused image is defined as a linear integration of the VA and X-ray images. Moreover, a color-based fusion technique was employed to integrate the images for better visualization of structural information.