Design, Implementation, and Characterization of a Dedicated Breast Computed Mammo Tomography System for Enhanced Lesion Imaging
Annual summary 1 Mar 2006-28 Feb 2007
DUKE UNIV DURHAM NC
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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.
- Anatomy and Physiology
- Medicine and Medical Research
- Computer Programming and Software