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Proceedings Paper

Enhancement of breast periphery region in digital mammography
Author(s): Ana Luiza Menegatti Pavan; Antoine Vacavant; Andre Petean Trindade; Caio Cesar Quini; Diana Rodrigues de Pina
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Paper Abstract

Volumetric breast density has been shown to be one of the strongest risk factor for breast cancer diagnosis. This metric can be estimated using digital mammograms. During mammography acquisition, breast is compressed and part of it loses contact with the paddle, resulting in an uncompressed region in periphery with thickness variation. Therefore, reliable density estimation in the breast periphery region is a problem, which affects the accuracy of volumetric breast density measurement. The aim of this study was to enhance breast periphery to solve the problem of thickness variation. Herein, we present an automatic algorithm to correct breast periphery thickness without changing pixel value from internal breast region. The correction pixel values from periphery was based on mean values over iso-distance lines from the breast skin-line using only adipose tissue information. The algorithm detects automatically the periphery region where thickness should be corrected. A correction factor was applied in breast periphery image to enhance the region. We also compare our contribution with two other algorithms from state-of-the-art, and we show its accuracy by means of different quality measures. Experienced radiologists subjectively evaluated resulting images from the tree methods in relation to original mammogram. The mean pixel value, skewness and kurtosis from histogram of the three methods were used as comparison metric. As a result, the methodology presented herein showed to be a good approach to be performed before calculating volumetric breast density.

Paper Details

Date Published: 2 March 2018
PDF: 10 pages
Proc. SPIE 10574, Medical Imaging 2018: Image Processing, 105742R (2 March 2018); doi: 10.1117/12.2293547
Show Author Affiliations
Ana Luiza Menegatti Pavan, São Paulo State Univ. (Brazil)
Antoine Vacavant, Univ. Clermont Auvergne (France)
Andre Petean Trindade, Univ. Estadual Paulista "Júlio de Mesquita Filho" (Brazil)
Caio Cesar Quini, São Paulo State Univ. (Brazil)
Diana Rodrigues de Pina, Univ. Estadual Paulista "Júlio de Mesquita Filho" (Brazil)

Published in SPIE Proceedings Vol. 10574:
Medical Imaging 2018: Image Processing
Elsa D. Angelini; Bennett A. Landman, Editor(s)

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