Mammography Imaging Using a Harpicon-Based Image Detector View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1998

AUTHORS

Keiji Umetani , Hironori Ueki , Tohoru Takeda , Yuji Itai , Masayoshi Akisada , Yasuhito Sasaki

ABSTRACT

A high-spatial resolution imaging system employing lens coupling between a fluorescent screen and a HARPICON™ camera was evaluated as a digital mammographie imaging device. A mammographie image on the fluorescent screen is focused on the photoconductive layer of the high sensitivity HARPICON tube by lenses. The limiting spatial resolution in the 1024 × 980 pixel mode of the camera is about 60 um at an input field of 50 × 50 mm on the screen. Images of a standard mammographie phantom were taken at the monochromatized X-ray energy of 20 keV. The images showed smaller specks of microcalcifications and tumor masses than those discernible in images obtained with a conventional screen-film mammography unit. More... »

PAGES

83-86

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-4-431-68485-5_13

DOI

http://dx.doi.org/10.1007/978-4-431-68485-5_13

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1039591349


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