Effects of Different Dose of Contrast Agent on Coronary Artery and Coronary Sinus Enhancement in CT Coronary Angiography
YANG Yi
HOU Hao-yu
SUN Qiu
Abstract：Objective To investigate the effects of different dose of contrast agent on coronary artery and coronary sinus enhancement in CT coronary angiography.Methods One hundred and twenty-four patients with coronary heart disease in author's hospital from December 2013 to December 2014 were divided into high-and low-dose group (n=62) by random number table method.CT coronary angiography was performed in two groups of patients.Coronary artery imaging parameters were compared between two groups.The CT values of coronary sinus, ascending aorta, descending aorta, left main coronary artery and proximal segments of right coronary artery in the two groups were recorded.Results The contrast agent dosage of patients in low-dose group was significantly lower than those in high-dose group (P<0.05), and there were no significant differences in other coronary artery imaging parameters between two groups (P>0.05).The CT value of ascending aorta, descending aorta, left main coronary artery and proximal segments of right coronary artery had no significant difference in CT coronary angiography in two groups (P>0.05).However, the CT value of coronary sinus in low-dose group was significantly lower than that in high-dose group (P<0.05).Conclusion The contrast agent dosage of 0.7ml/kg can achieve a better effect of coronary artery enhancement and effectively avoid the enhancement of coronary sinus when using 640 slice dynamic volume CT.It is worthy of clinical promotion.
Keywords：Coronary angiographyContrast agentCoronary arteryCoronary sinus
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 247-249,282 )