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http://dx.doi.org/10.14400/JDC.2015.13.9.431

A Convergence Study on effectiveness of contrast agent reduction by normal saline solution dilution in the computed tomography of arteries of lower limb  

Kim, Sang-Hyun (Dept. of Radiology, Seoul National University Hospital, Dept. of Radiological Science, Eulji University)
Publication Information
Journal of Digital Convergence / v.13, no.9, 2015 , pp. 431-437 More about this Journal
Abstract
This convergence study analyzed the effectiveness of contrast agent reduction by normal saline solution dilution in the computed tomography of arteries of lower limb. 48 patients of 125 cc contrast agent and 30 patients of the same amount divided at a ratio of 7:3 for the contrast agent and normal saline solution were studied. The average attenuation coefficient(HU) and signal to noise ratio(SNR) of abdominal aorta, femoral artery, popliteal artery and posterior tibial artery at each image were evaluated quantitatively and the four criteria in the five point scale was conducted qualitatively by two radiologists and four radiological technologists. In the quantitative evaluation, both HU and SNR had high average score before dilation but there were no statistical significance by independent t-test(p>0.05). In the qualitative evaluation, there were a little differences in the average scores between 4.86~4.77 of original contrast agent and 4.83~4.67 of dilated contrast agent but there were no statistical significance(p>0.05). In the computed tomography of arteries of lower limb, the dilated contrast agent doesn't influence image quality and reduces overall contrast agent and lowers iodine content per unit of molecular therefore will contribute to decrease side effect of contrast agent.
Keywords
Convergence; Arteries of lower limb; Normal saline; Contrast agent; dilution;
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Times Cited By KSCI : 11  (Citation Analysis)
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