Multilayer x-ray detector for contrast-enhanced digital subtraction mammography

Nicholas Allec; Karim S. Karim

doi:10.1117/12.844008

22 March 2010 Multilayer x-ray detector for contrast-enhanced digital subtraction mammography

Nicholas Allec, Karim S. Karim

Proceedings Volume 7622, Medical Imaging 2010: Physics of Medical Imaging; 76221M (2010) https://doi.org/10.1117/12.844008
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

Contrast-enhanced digital subtraction mammography relies on the growth of new blood vessels (i.e. tumor angiogenesis) during the development of cancer. The growth accompanies an increase in tumor cell population to provide sufficient materials for cell proliferation. Since cancers will accumulate an injected contrast agent more than other tissues, it is possible to use one of several methods to enhance the area of lesions and remove the contrast of normal tissue. Large area flat panel detectors may be used for contrast-enhanced mammography wherein the subtraction of two acquired images is used to create the resulting enhanced image. Existing methods include temporal subtraction and dual energy subtraction, however these methods suffer from artifacts due to patient motion between the registration of images to be subtracted. In this paper we propose using a multilayer flat panel detector for contrast-enhanced digital subtraction mammography. The detector is designed to acquire both images simultaneously, thus avoiding motion artifacts in the resulting subtracted image. We study the multilayer detector design and examine the optimal weight factor and the signal difference to noise ratio. We find that the multilayer detector has the potential for energy discrimination, and thus the ability to be used for contrast-enhanced digital subtraction mammography.

Citation Download Citation

Nicholas Allec and Karim S. Karim "Multilayer x-ray detector for contrast-enhanced digital subtraction mammography", Proc. SPIE 7622, Medical Imaging 2010: Physics of Medical Imaging, 76221M (22 March 2010); https://doi.org/10.1117/12.844008

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