Tornosynthesis Breast Imaging: Early Detection and Characterization of Breast Cancer.
Abstract
Tomosynthesis is a method of obtaining tomographic images of the breast. We have developed a method for breast tomosynthesis using a full-field digital mammography system. algorithms have been developed to reconstruct any plane in the breast from a series of low-dose images obtained as the x-ray source moves in an are above the breast. Our results indicate: (1) a radiation dose similar to a conventional mammogram may be used for tomosynthesis, (2) the optimum number of view is seven to mine based on the trade-off between total exposure time and the number of views, and (3) the optimum tomographic angle is 30 to 40 degrees. Finally, we have developed a number of phantoms for basic image quality measurements and complex phantoms for an observer study. Our results indicate tomosynthesis will over improvements over conventional breast screening methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1998
- Accession Number
- ADA364248
Entities
People
- Loren T. Niklason
Organizations
- Massachusetts General Hospital