Improving a CAD system using bilateral information

Author

Tortajada, Meritxell ; Oliver, Arnau ; Díez, Yago ; Martí, Robert ; Vilanova, Joan C. ; Freixenet, Jordi

Author_Institution

Inst. of Inf. & Applic., Univ. of Girona, Girona, Spain

fYear

2010

fDate

Aug. 31 2010-Sept. 4 2010

Firstpage

5054

Lastpage

5057

Abstract

Computer Aided Detection (CAD) mammographic systems are used in medicine to assist radiologists in the evaluation of mammographic images. The aim of this work is to compare the results of a developed single-image CAD system with a new one, dual-image CAD, that adds registration information of bilateral mammographic images in the training step of the former system. The evaluation of the different registration methods is performed using similarity measures. Receiver Operating Characteristic (ROC) analysis and Free Receiver Operating Characteristics (FROC) analysis are used to compare the results of both CAD systems. At a sensitivity of 80%, the false positives per image was 1.68 for the single-image CAD system and 0.90 for the dual-image CAD system. The results shows the benefits of integrating bilateral information into the CAD system.

Keywords

image registration; mammography; medical image processing; sensitivity analysis; bilateral information; bilateral mammographic images; computer aided detection; dual-image CAD system; free receiver operating characteristics analysis; registration information; Breast; Databases; Design automation; Image registration; Mammography; Measurement; Training; Algorithms; Diagnosis, Computer-Assisted; Female; Humans; Mammography; ROC Curve; Radiographic Image Interpretation, Computer-Assisted;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Conference_Location

Buenos Aires

ISSN

1557-170X

Print_ISBN

978-1-4244-4123-5

Type

conf

DOI

10.1109/IEMBS.2010.5626220

Filename

5626220