Improved Mammographic Technique for Breast Cancer Diagnosis.
Abstract
During the fourth year of the project, we have (a) completed a simulation study of the effects of equalization and filter misalignment, (b) designed and built a prototype compressible tank for equalization with a prone mammography system, (c) studied the dynamic range and contrast for equalization using the new liquid bolus method, and (d) studied the optimization of mammographic imaging techniques by Monte Carlo modeling. We have demonstrated the feasibility of the original approach of constructing a near-patient specific external filter device for x-ray equalization. We have also investigated the design and construction of a prototype compressible tank for the new approach. We have identified some potential tissue-equivalent liquids that can be used for equalization with the immersion method. The new approach is a significant step towards the practical implementation of the x-ray equalization technique. The optimal techniques and detectors for mammographic imaging without the dynamic range limitation by the detector are being studied by Monte Carlo modeling. In the no-cost-time-extension year, we plan to continue the investigation of the new equalization technique and the optimization of the mammographic imaging system..
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1998
- Accession Number
- ADA359999
Entities
People
- Heang-Ping Chan
Organizations
- University of Michigan