In:
Journal of Computational and Theoretical Nanoscience, American Scientific Publishers, Vol. 18, No. 5 ( 2021-05-01), p. 1586-1589
Kurzfassung:
Based on the structure of the radiation-generating equipment and the generation principle, the image quality should be maintained under minimum dose for an excellent diagnostic image. To minimize the factors during the differences in diagnostic imaging by the same examinee due to differences
in systems, we compared and analyzed the changes in signal intensity of the images acquired in the F/S and the DR system at the cathode, center, and anode. Images were acquired with a tube voltage of 55 kVp and a tube current of 4 mAs (100 mA, 0.004 sec). The obtained images were averaged by measuring the concentration 5 times at 3 centers (center, center to anode 3 cm, center to cathode 3 cm), 3 anode areas (6 cm from center to anode, 9 cm from center to anode, and 12 cm from center to anode), and 3 cathode areas (6 cm from center to cathode, 9 cm from center to cathode, and
12 cm from center to cathode). The concentration of the cathode area was higher than that of the anode in the F/S system. In the DR system, the gradient value of the anode part was higher than that of the cathode. However, the heel effect was large in the F/S system, but not as large as in the DR system. In the DR system, a study is needed to investigate whether the darkest point in the digital image was large or small in the expression of the gradient value.
Materialart:
Online-Ressource
ISSN:
1546-1955
DOI:
10.1166/jctn.2021.9627
Sprache:
Englisch
Verlag:
American Scientific Publishers
Publikationsdatum:
2021
