2 March 2006 High-speed large angle mammography tomosynthesis system
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A new mammography tomosynthesis prototype system that acquires 21 projection images over a 60 degree angular range in approximately 8 seconds has been developed and characterized. Fast imaging sequences are facilitated by a high power tube and generator for faster delivery of the x-ray exposure and a high speed detector read-out. An enhanced a-Si/CsI flat panel digital detector provides greater DQE at low exposure, enabling tomo image sequence acquisitions at total patient dose levels between 150% and 200% of the dose of a standard mammographic view. For clinical scenarios where a single MLO tomographic acquisition per breast may replace the standard CC and MLO views, total tomosynthesis breast dose is comparable to or below the dose in standard mammography. The system supports co-registered acquisition of x-ray tomosynthesis and 3-D ultrasound data sets by incorporating an ultrasound transducer scanning system that flips into position above the compression paddle for the ultrasound exam. Initial images acquired with the system are presented.
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Jeffrey W. Eberhard, Paul Staudinger, Joe Smolenski, Jason Ding, Andrea Schmitz, Julie McCoy, Michael Rumsey, Abdulrahman Al-Khalidy, William Ross, Cynthia E. Landberg, Bernhard E. H. Claus, Paul Carson, Mitchell Goodsitt, Heang-Ping Chan, Marilyn Roubidoux, Jerry A. Thomas, and Jacqueline Osland "High-speed large angle mammography tomosynthesis system", Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61420C (2 March 2006); doi: 10.1117/12.653298; https://doi.org/10.1117/12.653298

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