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June 11, 2014

Mtg: Evolution of the UC Davis Breast CT Scanner

by @ 1:26 pm. Filed under ALL, BioEngineering, Electronics Design, Optics/Displays

WEDNESDAY September 10, 2014
SCV Signal Processing Chapter
– tomography, improvements, correction, pre-processing …
Speaker: Prof. John M. Boone, UC Davis Medical Center
Time: Networking and light dinner at 6:30 PM; Presentation at 7:00 PM
Cost: Donation for food
Place: AMD Commons Bldg, 1 AMD Place, Sunnyvale
RSVP: from website

The breast tomography project began at the University of California Davis around the year 2000.  Since then, for prototype breast CT scanners have been designed, fabricated, integrated, and tested clinically.  This process, over 600 women have had breast CT scans on these platforms.  The breast CT systems at UC Davis made use of existing hardware such as an x-ray, x-ray tube and generator, and motor/encoder systems, but all other aspects were designed in-house, fabricated at a local machine shop under contract, and assembled and integrated in our laboratory.  In this presentation, an overview of the hardware evolution will be presented, outlining the improvements in image quality through each prototype scanner.  A thorough discussion of the image processing requirements of the breast CT system will also be discussed, including image correction methods, image preprocessing (prior to reconstruction) for scatter correction and Hounsfield Unit calibration, cone beam reconstruction, and image analysis methods including post-reconstruction flat fielding, and the assessment of quantum and anatomical noise of the breast.


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