Limitations To Accuracy In Dual Energy Digital Fluoroscopy

Robert E. Alvarez; Leonard A. Lehmann; Albert Macovski; William R. Brody

doi:10.1117/12.933046

4 November 1981 Limitations To Accuracy In Dual Energy Digital Fluoroscopy

Robert E. Alvarez, Leonard A. Lehmann, Albert Macovski, William R. Brody

Proceedings Volume 0314, Digital Radiography; (1981) https://doi.org/10.1117/12.933046
Event: Conference on Digital Radiography, 1981, Palo Alto, United States

Abstract

A digital fluoroscopy system has many desirable features for energy selective imaging. Unfortunately it has significant problems which may prevent it from being used for this application. Two techniques for overcoming the limitations of digital fluoroscopy are presented. The first attacks the lack of absolute measurements in data from digital fluoroscopy. The nonlinear processing used in energy selective imaging requires absolute data. Techniques are presented which use relative measurements and still allow selective material imaging. Digital fluoroscopy is normally used for subtraction imaging so that errors in the data tend to cancel. By using a generalization of subtraction imaging called hybrid subtraction, the errors introduced by using fluoroscopic data in energy selective imaging can be significantly reduced.

Citation Download Citation

Robert E. Alvarez, Leonard A. Lehmann, Albert Macovski, and William R. Brody "Limitations To Accuracy In Dual Energy Digital Fluoroscopy", Proc. SPIE 0314, Digital Radiography, (4 November 1981); https://doi.org/10.1117/12.933046

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