Premium
The optimization of signal detectability in digital fluoroscopy
Author(s) -
Zamenhof Robert G.
Publication year - 1982
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595130
Subject(s) - fluoroscopy , figure of merit , signal (programming language) , sensitivity (control systems) , tube (container) , noise (video) , materials science , filtration (mathematics) , scanner , signal to noise ratio (imaging) , nuclear medicine , optics , acoustics , physics , computer science , electronic engineering , medicine , radiology , mathematics , engineering , statistics , image (mathematics) , artificial intelligence , composite material , programming language
An optimization analysis of digital fluoroscopy has been carried out using (signal/noise) 2 /dose as a figure of merit. Three signal detection tasks have been considered: (i) small iodine‐containing blood vessels; (ii) regions of fat; and (iii) microcalcifications. The effects of x‐ray beam filtration and kilovoltage on the figure of merit have been parameterized and the associated x‐ray tube power loadings have been defined. Results are presented in a fashion that facilitates the choice of parameters (amount of aluminum filtration, kilovoltage, and x‐ray tube power loading) such that an acceptable balance can be achieved between signal detection sensitivity, patient dose, and x‐ray tube power loading.