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Proceedings Paper

Design and evaluation of a slot-scanning full-field digital mammography system
Author(s): Guy M. Besson; Andreas Koch; Mike Tesic; Roland Sottoriva; Pascal Prieur-Drevron; Bernard Munier; Emmanuel Calais; Paul DeGroot
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Paper Abstract

The FDA has approved the SenoScan slot-scanning Full-field Digital Mammography system. A high power Tungsten-target x- ray tube enables breast imaging with 0.22 s effective exposure time. A 21-cm X 29-cm area is scanned in less than 6 seconds, at a typical clinical technique of 30 kVp, 170 mA. The detector comprises a Thalium-doped Cesium Iodide scintillator coupled to a combination of four CCDs abutted along their narrow dimension to from a 10-mm by 210-mm slot. With the CCDs operated in time-delay-and-integration mode along the narrow dimension, the system functions in a continuous scanning mode. The MTF in the standard and high- resolution modes extend to 10-cycles/mm and beyond 14 cycles/mm respectively. The Detective Quantum Efficiency curve starts at 50 percent at DC and extends to 10 cycles/mm in Standard model. Accordingly the SenoScan system enables screening and diagnostic breast imaging with a limiting resolution approaching that of film-based systems. The overall system design and intrinsic scatter rejection efficiency directly translate in high DQE characteristics that enable screening at a significantly reduced patient dose.

Paper Details

Date Published: 3 May 2002
PDF: 12 pages
Proc. SPIE 4682, Medical Imaging 2002: Physics of Medical Imaging, (3 May 2002); doi: 10.1117/12.465589
Show Author Affiliations
Guy M. Besson, Fischer Imaging Corp. (United States)
Andreas Koch, Thales Electron Devices (France)
Mike Tesic, Fischer Imaging Corp. (United States)
Roland Sottoriva, Thales Electron Devices (France)
Pascal Prieur-Drevron, Thales Electron Devices (France)
Bernard Munier, Thales Electron Devices (France)
Emmanuel Calais, Thales Electron Devices (France)
Paul DeGroot, Thales Electron Devices (United States)

Published in SPIE Proceedings Vol. 4682:
Medical Imaging 2002: Physics of Medical Imaging
Larry E. Antonuk; Martin Joel Yaffe, Editor(s)

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