Effect of Comprehensive Nursing Intervention on Success Rate, Image Quality and Radiation Dose of Coronary CT Angiography

  • Ling Li
Keywords: Comprehensive Nursing Intervention, Success Rate of Coronary CT Angiography, Image Quality, Radiation Dose


To investigate the effect of comprehensive nursing intervention on the success rate, image quality and radiation
dose of coronary CT angiography. 168 patients who underwent coronary CT angiography in our hospital from
June 2016 to September 2017 were retrospectively collected. These patients were divided into control group and
experimental group based on different nursing methods, of which, 72 cases in the control group and 96 cases in the
experimental group. All patients in the control group received routine nursing and those in the experimental group
received comprehensive nursing intervention based on the control group. The success rate, radiation dose, anxiety
score, heart-rate variability, image quality of each segment of coronary artery, diagnosable quantity of each
branch, CT values and noise were observed and compared between both groups. The success rates of the
experimental group and the control group were 95.83% (90/91) and 72.22% (52/67), respectively, with
significant difference between both groups (P<0.05). The radiation dose and S-AI score of the experimental
group were significantly lower than those of the control group (P <0.05). The diagnosable rate of the
experimental group was 96.93% (821/847) and that of the control group was 92.02% (565/614), with significant
difference between both groups (P < 0.05). The number of diagnosable branches of the proximal circumflex
branch and that of the middle part of right coronary artery of patients in the experimental group were
significantly higher than those in the control group (P < 0.05). There was no significant difference in the number
of remaining diagnosable branches between both groups (P >0.05). The heart rate variability in the
experimental group was significantly lower than that in the control group (P < 0.05). Compared with the
control group, there was no significant difference in CT value and noise in the experimental group (P >
0.05). Comprehensive nursing intervention can significantly improve the poor moods of patients such as anxiety
and fear, enhance the image quality and reduce the radiation dose.