Design of Next Generation Stationary Digital Breast Tomosynthesis System Public Deposited

Downloadable Content

Download PDF
Last Modified
  • March 20, 2019
  • Phan, Tuyen
    • Affiliation: School of Medicine, UNC/NCSU Joint Department of Biomedical Engineering
  • Digital breast tomosynthesis is a three-dimensional mammography technique where scans are acquired at a limited angle and the projections are reconstructed. It overcomes the main limitation of mammography, which is tissue overlap, by providing improved depth resolution. The emerging technology still uses a conventional x-ray source based on thermionic emission that requires rotation of the source to cover the angular range. This thesis presents the design and characterization of a next generation stationary digital breast tomosynthesis system that uses a carbon nanotube-based (CNT-based) multi-pixel x-ray source. The CNT-based x-ray source eliminates the need for rotation of the x-ray tube and allows for higher temporal resolution because the pixels can be switched on instantaneously. The system will be able to operate at 30-60 kV and can be used for quasi-monochromatic imaging at a reasonable scan time in order to increase contrast between tissues of similar attenuation.
Date of publication
Resource type
Rights statement
  • In Copyright
  • "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Biomedical engineering."
  • Zhou, Otto
Place of publication
  • Chapel Hill, NC
  • Open access

This work has no parents.