Clinical and Technical Performance Evaluation of a Digital Mammography System
Abstract
A slot-scanning digital mammography system was designed, constructed and tested to determine if improved image quality can improve the diagnostic quality of mammograms or to show that the same image quality can be provided at a lower patient dose. Technical evaluation of image data showed improved image quality over screen-film mammography. Not all of the design parameters of the system were met and further improvements in spatial resolution and scanning speed can be obtained through recommended changes to the design. A 2-patient clinical study was performed demonstrating the feasibility of obtaining full- field digital mammograms with a slot-scanning system. Slot scanning is perhaps the lowest cost design for digital mammography due to the small detector area required. A promising new material (thallium bromide) was evaluated as a photoconductors that can be applied directly to the surface of a semiconductor sensor array. Results indicate that thallium bromide can provide superior performance over existing phosphors and photoconductors for many applications in digital x-ray imaging.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2000
- Accession Number
- ADA384082
Entities
People
- Ronald Schilling