This proposal is directed at the development, application, and evaluation of a novel computer assisted diagnosis (CAD) method for the detection and classification of clustered calcifications from digitized mammograms. The long term aim of the research is the design of fully automated CAD methods that will have the role of """"""""a second reader"""""""" in the interpretation of digital mammograms with a significant impact on the standardization of reading, sensitivity, specificity, and telemammography.
The specific aims of the proposed study included: (a) the development of a CAD method that starts with the automatic extraction of calcifications from digitized mammograms using novel wavelet and quadrature mirror filter methodology and proceeds with computer-extracted features of the segmented calcifications for the automatic benign/malignant differentiation of the extracted classifications using neural networks with faster and more efficient training algorithms; (b) the development of a database with normal and abnormal (benign and malignant) cases with calcifications representative of clinical practice; (c) the initial evaluation of each module of the proposed CAD methodology using simulation studies and carefully selected sets of mammograms with ground truth determined by biopsy and experts; (d) the investigation of the effect of image resolution on the CAD outcome and on the design of each module of the algorithm aiming at the implementation of a flexible and possibly image independent technique; (e) the development of a user-friendly, open-architecture computer interface that will allow performance reading of digitized mammograms and CAD effectively from computer monitors aiming at future teleradiology applications; and (f) the conduct of a clinical study of the proposed CAD technique using receiver operating characteristic (ROC) analysis.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
First Independent Research Support & Transition (FIRST) Awards (R29)
Project #
5R29CA071479-02
Application #
2443271
Study Section
Special Emphasis Panel (ZRG7-DMG (01))
Project Start
1996-09-01
Project End
1998-06-30
Budget Start
1997-07-01
Budget End
1998-06-30
Support Year
2
Fiscal Year
1997
Total Cost
Indirect Cost
Name
University of South Florida
Department
Radiation-Diagnostic/Oncology
Type
Schools of Medicine
DUNS #
City
Tampa
State
FL
Country
United States
Zip Code
33612