title: A bilateral analysis scheme for false positive reduction in mammogram mass detection.
abstract: In this paper, a bilateral image analysis scheme is developed for the purpose of reducing false positives (FPs) in the detection of masses in dense mammograms. It consists of two steps: a region matching step for determining the correspondence between a pair of mammograms, and a bilateral similarity analysis step for discarding FPs in the detection. For the first step, a matching cost is defined to quantify the credibility of the corresponding region in a pair of bilateral mammograms. For the second step, a similarity measurement is introduced to discriminate between mass and normal for a pair of bilateral regions based on both global and local image appearances. The proposed scheme is tested on a set of 332 mammograms. The results show that the proposed scheme could obtain better performance when compared with several existing bilateral analysis schemes. With detection sensitivity at 85%, the proposed bilateral scheme could reduce the FP rate of a unilateral scheme from 3.64 to 2.39 per image, a 34% reduction.
authors.affiliation: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China. Electronic address: hjchen@bjtu.edu.cn.
authors.forename: Houjin
authors.initials: H
authors.lastname: Chen
authors.affiliation: Department of Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, IL, USA.
authors.forename: Yongyi
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Center for Breast, People's Hospital of Peking University, Beijing, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Cheng
authors.affiliation: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Cao
mesh_terms: D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008327:Mammography / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D014463:Ultrasonography
keywords: Bilateral analysis; Mammogram; Mass detection; Region matching; Similarity measurement