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) : McKinley, Randolph L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a470992.pdf


Report Date : 01 Mar 2007


Pagination or Media Count : 96


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.


Descriptors :   *COMPUTERIZED TOMOGRAPHY , *BREAST CANCER , OBSERVERS , DETECTION , MOTION , EFFICIENCY , PROTOTYPES , SENSITIVITY , LIMITATIONS , LESIONS , MAMMOGRAPHY , BEDDING , MAMMARY GLANDS , IMAGES , DOSAGE , LOW LEVEL , WALLS , PATIENTS , THORAX , TILT


Subject Categories : Anatomy and Physiology
      Medicine and Medical Research
      Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE