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Proceedings Paper

Advanced digital mammography system based on phase contrast technology
Author(s): Tomonori Gido; Sumiya Nagatsuka; Kouji Amitani; Hisashi Yonekawa; Masaya Shimoji; Chika Honda
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Paper Abstract

The digital mammography system evaluated here is a digital full-field phase contrast mammography (PCM) system that employs a practical molybdenum x-ray tube with a 0.1mm focal spot size. By using custom apparatus to position 14"x17" photostimulable phosphor plate 49cm from the object, a distance of 65cm was obtained between the object and the focal spot of the x-ray tube. A plate optimized for the PCM system acquired images magnified 1.75 times with a 14"x17" and was scanned at a sampling pitch of 43.75μm by using a CR system. The diagnostic images were reduced in printing to actual object size with a pixel size of 25μm on 8"x10" dry-processed film with a maximum density of 4. This study compares the performance of the system with that of a usual contact CR mammography system.

Paper Details

Date Published: 20 April 2005
PDF: 8 pages
Proc. SPIE 5745, Medical Imaging 2005: Physics of Medical Imaging, (20 April 2005); doi: 10.1117/12.594972
Show Author Affiliations
Tomonori Gido, Konica Minolta Medical & Graphic, Inc. (Japan)
Sumiya Nagatsuka, Konica Minolta Medical & Graphic, Inc. (Japan)
Kouji Amitani, Konica Minolta Medical & Graphic, Inc. (Japan)
Hisashi Yonekawa, Konica Minolta Medical & Graphic, Inc. (Japan)
Masaya Shimoji, Konica Minolta Medical & Graphic, Inc. (Japan)
Chika Honda, Konica Minolta Medical & Graphic, Inc. (Japan)


Published in SPIE Proceedings Vol. 5745:
Medical Imaging 2005: Physics of Medical Imaging
Michael J. Flynn, Editor(s)

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