2009 Fiscal Year Final Research Report

An Image processing system using two view mammograms for reading masses

Research Project

Project/Area Number	19790907
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Radiation science
Research Institution	The University of Shiga Prefecture (2008-2009) Gifu National College of Technology (2007)
Principal Investigator	HATANAKA Yuji The University of Shiga Prefecture, 工学部, 准教授 (00353277)
Co-Investigator(Renkei-kenkyūsha)	FUJITA Hiroshi 岐阜大学, 大学院・医学系研究科, 教授 (10124033)
Project Period (FY)	2007 – 2009
Keywords	画像診断学 / 医用・生体画像 / マンモグラム / コンピュータ支援診断 / 差分処理
Research Abstract	It is important for reading mammograms to compare right and left breast tissues. But, right and left mammograms were asymmetry. In this study, both mammograms were aligned automatically by both nipples, which were detected automatically. And then automatic mass detection algorithm of computer-aided diagnosis system was improved by a feature, which was that normal breast tissues on both mammograms were similar. Specifically, the similarity of both mammograms was analyzed by using correlations, the average differential densities on both images, he higher order local autocorrelation feature.

(3 results)