Digital Mammography With Storage Phosphors.
Abstract
In the second year of the grant period, we have completed the following tasks: (1) We have improved the spatial resolution capability of our storage phosphor image reader by further reducing the laser spot size from 50 microns (obtained in first year) to 40 microns. (2) We have measured and compared the MTFs of the improved system with those of commercial systems. (3) We have developed a phantom for monitoring the overall image quality. (4) We have constructed and tested phantoms for the comparison study. (5) We have begun acquisition of storage phosphor and film images for the ROC study. (6) We have completed the test of the compression algorithms developed in the previous year. We have demonstrated with phantom images that the quality of the storage phosphor images, obtained with the improved imaging system, are superior to those obtained with current commercial systems. We have also shown that the quality approaches that of the screen-film images. We anticipate that image acquisition will be completed in January of 1995 and the ROC study will begin in February.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 23, 1994
- Accession Number
- ADA291927
Entities
People
- Chris C. Shaw
Organizations
- University of Pittsburgh