Vessel segmentation in screening mammograms

J .J. Mordang; N. Karssemeijer

doi:10.1117/12.2081804

20 March 2015 Vessel segmentation in screening mammograms

J .J. Mordang, N. Karssemeijer

Proceedings Volume 9414, Medical Imaging 2015: Computer-Aided Diagnosis; 94140J (2015) https://doi.org/10.1117/12.2081804
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

Blood vessels are a major cause of false positives in computer aided detection systems for the detection of breast cancer. Therefore, the purpose of this study is to construct a framework for the segmentation of blood vessels in screening mammograms. The proposed framework is based on supervised learning using a cascade classifier. This cascade classifier consists of several stages where in each stage a GentleBoost classifier is trained on Haar-like features. A total of 30 cases were included in this study. In each image, vessel pixels were annotated by selecting pixels on the centerline of the vessel, control samples were taken by annotating a region without any visible vascular structures. This resulted in a total of 31,000 pixels marked as vascular and over 4 million control pixels. After training, the classifier assigns a vesselness likelihood to the pixels. The proposed framework was compared to three other vessel enhancing methods, i) a vesselness filter, ii) a gaussian derivative filter, and iii) a tubeness filter. The methods were compared in terms of area under the receiver operating characteristics curves, the Az values. The Az value of the cascade approach is 0:85. This is superior to the vesselness, Gaussian, and tubeness methods, with Az values of 0:77, 0:81, and 0:78, respectively. From these results, it can be concluded that our proposed framework is a promising method for the detection of vessels in screening mammograms.

Citation Download Citation

J .J. Mordang and N. Karssemeijer "Vessel segmentation in screening mammograms", Proc. SPIE 9414, Medical Imaging 2015: Computer-Aided Diagnosis, 94140J (20 March 2015); https://doi.org/10.1117/12.2081804

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