Accession Number:

ADA470992

Title:

Design, Implementation, and Characterization of a Dedicated Breast Computed Mammo Tomography System for Enhanced Lesion Imaging

Descriptive Note:

Annual summary 1 Mar 2006-28 Feb 2007

Corporate Author:

DUKE UNIV DURHAM NC

Personal Author(s):

Report Date:

2007-03-01

Pagination or Media Count:

96.0

Abstract:

The overall goal of this work is to design implement and characterize a novel dedicated mammotomography system for enhanced lesion detection. This novel system will allow fully 3-D imaging of a pendant uncompressed breast using novel 3-D complex orbit capabilities. The system has been characterized in terms of dose efficiency and contrast sensitivity indicating the potential for sub-dual-view-dose imaging. The 2D and 3D MTFs have been determined. Observer studies have been performed to determine the lower limits of detectibility and a comparison with dual view mammography indicates mammotomography can detect significantly smaller lesions in the presence of overlying structure. Patient bed optimization has also been investigated and a prototype patient bed designed and tilt angles evaluated for optimization of chest wall imaging and patient comfort. Future studies for the remaining phase Year 3 of project will focus on feasibility of vertical patient bed motion and evaluation of breast sizes.

Subject Categories:

  • Anatomy and Physiology
  • Medicine and Medical Research
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE