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Open AccessArticle

Mammographic Segmentation Using WaveCluster

Living Discoveries, Morganville, NJ 07751, USA
Algorithms 2012, 5(3), 318-329; https://doi.org/10.3390/a5030318
Received: 2 June 2012 / Revised: 10 July 2012 / Accepted: 20 July 2012 / Published: 10 August 2012
(This article belongs to the Special Issue Machine Learning for Medical Imaging 2012)
Segmentation of clinically relevant regions from potentially noisy images represents a significant challenge in the field of mammography. We propose novel approaches based on the WaveCluster clustering algorithm for segmenting both the breast profile in the presence of significant acquisition noise and segmenting regions of interest (ROIs) within the breast. Using prior manual segmentations performed by domain experts as ground truth data, we apply our method to 150 film mammograms with significant acquisition noise from the University of South Florida’s Digital Database for Screening Mammography. We then apply a similar segmentation procedure to detect the position and extent of suspicious regions of interest. Our approach was able to segment the breast profile from all 150 images, leaving minor residual noise adjacent to the breast in three. Performance on ROI extraction was also excellent, with 81% sensitivity and 0.96 false positives per image when measured against manually segmented ground truth ROIs. When not utilizing image morphology, our approach ran in linear time with the input size. These results highlight the potential of WaveCluster as a useful addition to the mammographic segmentation repertoire. View Full-Text
Keywords: segmentation; wavelets; clustering; WaveCluster; mammography segmentation; wavelets; clustering; WaveCluster; mammography
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Barnathan, M. Mammographic Segmentation Using WaveCluster. Algorithms 2012, 5, 318-329.

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