Accession Number:



The Design and Emulation of a Multiple-Camera SPECT Breast Imager

Descriptive Note:

Annual rept. 19 May 1998-18 May 1999

Corporate Author:


Personal Author(s):

Report Date:


Pagination or Media Count:



This report summarizes the work completed in Year 2 of this grant. The work included continuing to optimize the geometry of the system configuration, emulating the system point spread function, developing an algorithm to generate three-dimensional reconstructions, collecting projection data for the small and large cameras, and generating three-dimensional reconstructions of the radiotracer distribution within the breast phantom The work was significantly hampered by the catastrophic failure of an essential computer system. A significant amount of time and energy was consumed in the efforts to fully recover from the failure, and, as a result, the principal investigator was not able to complete several of the tasks specified in Year 2 of the grant. Work on these unfinished tasks will continue into Year 3, but modifications to the Statement of Work will most likely be required. The parallel-hole collimator for the small camera was selected and installed. Projection data of the large breast phantom was collected for the small camera. Projection data of the large breast phantom was emulated for the proposed large camera by combining several shifted but overlapping projections collected with the small camera.

Subject Categories:

  • Medicine and Medical Research
  • Radiobiology
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement: