Fusion of digital breast tomosynthesis images via wavelet synthesis for improved lesion conspicuity

Harishwaran Hariharan; Victor Pomponiu; Bin Zheng; Bruce Whiting; David Gur

doi:10.1117/12.2043799

21 March 2014 Fusion of digital breast tomosynthesis images via wavelet synthesis for improved lesion conspicuity

Harishwaran Hariharan, Victor Pomponiu, Bin Zheng, Bruce Whiting, David Gur

Proceedings Volume 9034, Medical Imaging 2014: Image Processing; 90342B (2014) https://doi.org/10.1117/12.2043799
Event: SPIE Medical Imaging, 2014, San Diego, California, United States

Abstract

Full-field digital mammography (FFDM) is the most common screening procedure for detecting early breast cancer. However, due to complications such as overlapping breast tissue in projection images, the efficacy of FFDM reading is reduced. Recent studies have shown that digital breast tomosynthesis (DBT), in combination with FFDM, increases detection sensitivity considerably while decreasing false-positive, recall rates. There is a huge interest in creating diagnostically accurate 2-D interpretations from the DBT slices. Most of the 2-D syntheses rely on visualizing the maximum intensities (brightness) from each slice through different methods. We propose a wavelet based fusion method, where we focus on preserving holistic information from larger structures such as masses while adding high frequency information that is relevant and helpful for diagnosis. This method enables the spatial generation of a 2D image from a series of DBT images, each of which contains both smooth and coarse structures distributed in the wavelet domain. We believe that the wavelet-synthesized images, generated from their DBT image datasets, provide radiologists with improved lesion and micro-calcification conspicuity as compared with FFDM images. The potential impact of this fusion method is (1) Conception of a device-independent, data-driven modality that increases the conspicuity of lesions, thereby facilitating early detection and potentially reducing recall rates; (2) Reduction of the accompanying radiation dose to the patient.

Citation Download Citation

Harishwaran Hariharan, Victor Pomponiu, Bin Zheng, Bruce Whiting, and David Gur "Fusion of digital breast tomosynthesis images via wavelet synthesis for improved lesion conspicuity", Proc. SPIE 9034, Medical Imaging 2014: Image Processing, 90342B (21 March 2014); https://doi.org/10.1117/12.2043799

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