Stationary and Moving Computed Radiography Grids : Comparative Observer's Perception

Title & Authors
Stationary and Moving Computed Radiography Grids : Comparative Observer's Perception
Lee, Kiho; Lee, Changhoon; Jin, Gyehwan;

Abstract
This study assessed the degradation of image quality caused by grid artifacts and $\small{moir{\acute{e}}}$ pattern artifacts in a stationary grid, and the degradation of image quality caused by cut off artifacts in a moving grid. X-ray images were acquired in a stationary grid and a moving grid with X-ray exposure conditions of 100 cm, 80 kVp, and 30 mA using a CDRAD phantom and a 24 cm thickness acrylic phantom. Observer's perception of X-ray imaging using CDRAD Analyzer was mean 49.36, standard deviation 3.76, maximum 55.56, and minimum 38.67 in the stationary grid, and 47.04, 12.69, 55.56, and 20.89, respectively, in the moving grid. The stationary grid was superior to the moving grid in terms of the mean and standard deviation of observer's perception.
Keywords
Language
Korean
Cited by
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