The feasibility study of low radiation dose and lower dosis of contrast medium in left ventricular function analysis with 320-row CT
NIU Juan-qin
CHENG Man-ping
ZHANG Li-rong
DU Lin-zhi
LI Xin-yi
YANG ju-hong
GENG Pan
WANG Ya-qing
HAN Yue-dong
Abstract：Objective To evaluate the feasibility of the clinical application in left ventricular (LV ) function analysis by 320‐row volume CT with low radiation dose and lower dosis of contrast medium (double low ) .Methods Patients with suspected coronary heart disease ,who were then ruled out by the diagnosis with 320‐row volume coronary CTA ,were di‐vided into three groups randomly (60 cases per group) .Group A :120 kV ,Iohexol 350 mgI/ml;Group B:120 kV ,Iodix‐anol 270 mgI/ml;Group C :100 kV ,Iodixanol 270 mgI/ml .Some parameters at three interblock ,such as the quality of the coronary CTA images ,numerus of LV function ,contrast to noise ratio (CNR) of LV ,effective dose (ED) ,and the average iodine quantity of contrast medium ,were statistically analyzed respectively .Results There were no significant differences in the CTA image quality among the three groups ,and no differences were found in the cardiac function ,noise , CNR ,and ED between the group A and group B( P>0 .05) .However ,significant differences were found in ED and CNR between the group B and group C( P <0 .05) ,with on other differences being found ( P >0 .05) .Conclusion LV func‐tion can be reliably analyzed by “One‐stop” 320‐row volume CT with double low ,in which more diagnostic information could be provided to clinic .
Keywords：320-row volume CTCTACardiac functionRadiation doseIodine quantity
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 620-624 )