Sensitometry In Medical Imaging

Arthur G. Haus; Jose Bencomo; Carl Vyborny

doi:10.1117/12.955918

27 December 1977 Sensitometry In Medical Imaging

Arthur G. Haus, Jose Bencomo, Carl Vyborny

Proceedings Volume 0127, Application of Optical Instrumentation in Medicine VI; (1977) https://doi.org/10.1117/12.955918
Event: Application of Optical Instrumentation in Medicine VI, 1977, Boston, United States

Abstract

Sensitometric methods employed for determining the characteristic curve of interest in medical imaging are described. These methods are based on the way in which various recording systems are exposed. In diagnostic radiology, an x-ray intensity scale sensitometer is used for measurements of the characteristic curves of conventional film and screen-film systems. The effect of reciprocity law failure on the sensitometric evaluation of screen-film systems is illustrated. The shape of the characteristic curves as a function of the light spectrum emitted from three types of intensifying screens is presented. Sensitometric techniques for quality control of automatic processors are also discussed. In radiation therapy, a sensitometric technique is described for determination of the proper characteristic curve for a film which can be placed beneath the patient before radiation treatment and removed afterwards so that an image of the anatomy actually irradiated is obtained. A characteristic curve can also be obtained by means of which photographic densities measured on the therapy verification film is related to exit absorbed dose.

Citation Download Citation

Arthur G. Haus, Jose Bencomo, and Carl Vyborny "Sensitometry In Medical Imaging", Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); https://doi.org/10.1117/12.955918

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