Normal breast identification in screening mammography: a study on 18 000 images

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2014

Autores

Bessa, S (Autor) Outra; Domingues, I (Autor) Outra; Cardosos, JS (Autor) FEUP; Passarinho, P (Autor) Outra; Cardoso, P (Autor) Outra; Rodrigues, V (Autor) Outra; Lage, F (Autor) Outra

Ata de Conferência Internacional

Título: Proceedings - 2014 IEEE International Conference on Bioinformatics and Biomedicine, IEEE BIBM 2014

Páginas: 325-330

2014 IEEE International Conference on Bioinformatics and Biomedicine, IEEE BIBM 2014

2 November 2014 through 5 November 2014

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 11 Citações

Outras Informações

ID Authenticus: P-00A-8N3

DOI: 10.1109/BIBM.2014.6999178

Abstract (EN): Through the years, several CAD systems have been developed to help radiologists in the hard task of detecting signs of cancer in the numerous screening mammograms. A more recent trend includes the development of pre-CAD systems aiming at identifying normal mammograms instead of detecting suspicious ones. Normal breasts are screened-out from the process, leaving radiologists more time to focus on more difficult cases. In this work, a new approach for the identification of normal breasts is presented. Considering that even breasts with malignant findings are mostly constituted by normal tissue, the breast area is divided into blocks which are then compared pairwise. If all blocks are very similar, the breast is labelled as normal, and as suspicious otherwise. Features characterizing the pairwise block similarity and characterizing the intra-block pixel distribution are used to design a predictive method based on machine learning techniques. The proposed solution was applied on a real world screening setting composed by nearly 18000 mammograms. Results are similar to the more complex state of the art approaches by correctly identifying more than 20% of the normal mammograms. These results suggest the usefulness of the relative comparison instead of the absolute classification. When properly used, simple statistics can suffice to distinguish the clearly normal breasts.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6