| Objective:To establish a systematic and perfect nursing intervention model for CT coronary angiography and to explore the influence of the nursing intervention model on radiation dose and image quality. Methods:Through case control study method, 100 patients who were undertaken CT coronary artery enhancement scanning in the second hospital of Shanxi Medical University during January 2013 to January 2014 were selected as the control group(group A). In addition, another 100 patients who obtained CT coronary artery enhancement scanning in the same hospital during June 2014 to June 2015 were selected as the case group(group B). The control group was given routine nursing intervention. Meanwhile the case group was given comprehensive nursing intervention measures. Thus the effect of comprehensive nursing intervention measures is judged by the comparison of radiation dose, image quality and the number of people undergone prospective ECG-gated scanning mode and retrospective ECG-gated scanning mode respectively.SPSS13.0 statistical software is employed for the analysis of t-test, variance and chi square test on relevant data. When the value of P was less than 0.05, the difference was statistically significant. Results :(1) General situation: Among 100 patients, 55 females and 45 males were included in control group with a mean age of(55±10) years old and a body mass index of(24.7±3.50) kg/m2; For case group, there were 47 females and 53 males with a mean age of(54±10)years old and body mass index of(23.82±2.93) kg / m2. There was no statistical difference in general situation between the two groups(P>0.05).(2)The results of the study showed: ?67 cases of group A and 91 cases of group B were adopted prospective ECG-gated scanning mode. 33 cases of group A and 9 cases of group B were adopted retrospective ECG-gated scanning mode. There was a significant difference in the number of two groups with prospective ECG-gated scanning mode. ?The radiation dose of group A was(6.37±3.64) mSv. The radiation dose of group B was(4.51±2.29) mSv. The difference in radiation dose was statistically significant. ?There was no significant difference between the CT value and the noise of A1 and B1(P>0.05); The difference of the image quality of coronary artery branches between A1 and B1 was statistically significant(P<0.05).The difference of the number of diagnosable branches between A1 and B1 was statistically significant(P<0.05).(4)The difference in anxiety scores was statistically significant before and after comprehensive nursing intervention. Conclusions:Comprehensive nursing intervention measures can alleviate anxiety and help patients master the correct way of breathing. It can increase the number of patients adopted prospective ECG-gated scanning mode, reduce the radiation dose and obtain a better image quality. |
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