Application of double prospective ECG-gated high-pitch spiral acquisition indual-source CT coronary angiography
SUN Zhanguo
XU Wenjian
HUANG Shuran
CHEN Yueqin
GUO Xiang
QIAN Haizhen
LIU Ping
Abstract：Objective To discuss the clinical value of double prospective ECG-gated high-pitch spiral (Double-Flash) acquisition in dual-source CT (DSCT) coronary angiography (CTCA).Methods According to the inclusion criteria, 53 patients with suspected coronary artery disease (CAD) undergoing CTCA in Double-Flash acquisition were enrolled as study group.40 patients according to the same criteria and undergoing sequential acquisition were selected as control group.The image quality of coronary artery, effective radiation dose and diagnostic accuracy were compared between the two groups.Results There was no significant difference in clinical data between study and control group (P>0.05).Proportion of coronary segments with diagnosable image quality (IQ) had no significant difference between the two groups (P>0.05), while, the proportion with excellent IQ in study group was lower than that in control group (P<0.05).The effective radiation dose of study group (2.08±0.39) mSv was lower than that of control group (3.67±1.11) mSv, with significant difference (P<0.05).The diagnostic accuracy was 97.91% in study group and 98.76% in control group, respectively, without significant difference (P>0.05).Conclusion DSCT Double-Flash CTCA with diagnosable image quality and high diagnostic accuracy is able to be used for patients with stable HR≤75 bpm at a lower radiation dose.
Keywords：TomographyX-ray computedCoronary angiographyHigh-pitchSpiral
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：6( 629-634 )