Imaging performance of a prototype scanned-slot digital mammography system

Andrew D. A. Maidment; Martin Joel Yaffe; Donald B. Plewes; Gordon E. Mawdsley; Ian C. Soutar; Brian G. Starkoski

doi:10.1117/12.154579

14 September 1993 Imaging performance of a prototype scanned-slot digital mammography system

Andrew D. A. Maidment, Martin Joel Yaffe, Donald B. Plewes, Gordon E. Mawdsley, Ian C. Soutar, Brian G. Starkoski

Proceedings Volume 1896, Medical Imaging 1993: Physics of Medical Imaging; (1993) https://doi.org/10.1117/12.154579
Event: Medical Imaging 1993, 1993, Newport Beach, CA, United States

Abstract

A prototype of a clinical scanned-slot digital mammography imaging system has been developed, which demonstrates better contrast sensitivity and latitude than current state-of-the- art film-screen mammography systems. The detector consists of a Gd₂O₂S:Tb phosphor screen coupled via a 2-to-1 demagnifying fiber-optic taper to two time-delay integration (TDI) charge-coupled device (CCD) image arrays. Images are obtained by scanning the 4.0 mm wide by 21 cm long detector across the image field. An 18 cm by 21 cm image contains 2900 by 4032 pixels, of dimension 62 micrometers X 52 micrometers at the detector. Currently, images are produced in 7.8 seconds using a 40 kV tungsten-target spectrum with a total heat load of 50 kJ, giving a mean glandular dose of 0.85 mGy (85 mrad) to a 5 cm thick 50% glandular, 50% adipose breast. The detector has a limiting resolution of 9.5 lp/mm. A clinical version of this prototype, which incorporates several improvements, is being constructed.

Citation Download Citation

Andrew D. A. Maidment, Martin Joel Yaffe, Donald B. Plewes, Gordon E. Mawdsley, Ian C. Soutar, and Brian G. Starkoski "Imaging performance of a prototype scanned-slot digital mammography system", Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); https://doi.org/10.1117/12.154579

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available