Reduction of the Radiation Dose by Decreasing the Tube Current without Degradation of Low-Contrast Detectability on Abdominal Multi-Detector Row CT: A Phantom-Based Study ()
ABSTRACT
As use of the lowest acceptable radiation dose during routine
diagnostic imaging is important, we determined the optimal tube current without
degradation of low-contrast detectability on abdominal multi-detector row CT
(MDCT). CT scanning was performed with a Catphan® 500
phantom. The optimal tube current was 300 mA on 64-MDCT and 160 mA on 8-MDCT,
with a fixed voltage of 120 kV. Reduction of the radiation dose in abdominal CT
scanning by lowering the tube current proved to be feasible.
Share and Cite:
Hu, M. , Zhao, X. , Song, J. and Zhou, C. (2013) Reduction of the Radiation Dose by Decreasing the Tube Current without Degradation of Low-Contrast Detectability on Abdominal Multi-Detector Row CT: A Phantom-Based Study.
Open Journal of Medical Imaging,
3, 110-115. doi:
10.4236/ojmi.2013.34018.
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