Abstract:

Abstract:Objective To compare the clinical application effect and radiation dose of dual axis rotational coronary angiography (XperSwing) and conventional coronary angiography(CCA) technique, and to evaluate the  differences and clinical  values of two kinds of coronary angiography technique.Methods 30 cases induding 20 cases of CCA group and  10 cases of XperSwing group under went coronary angiography were
 collected in clinic; the fluoroscope time, contrast agent usage and the score of image quality of the patients in two groups were analyzed. Using the Chinese anthropomorphic chest phantom, the virtual surgical environment of XperSwing and CCA was simulated. The thermoluminescent dosimeters(TLD) were placed on its major organs,and  the  absorbed doses of different organs were measured and the effective doses were computed. Results Compared with  CCA group, the contrast agent usage was decrea
sed by 27.74%(P<0.05),and the  fluoroscope time and the score of image quality in XperSwing group had no significant difference(P>0.05). The mean radiation dose in XperSwing group was lower than that in CCA group (P<0.05). The effective dose in XperSwing group(4.94 mSv) was lower than that in CCA group(5.57 mSv). Conclusion XperSwing technique can fulfill the image quality requirement  and effectively reduce the contrast agent usage and radiation doseof coronary angiography.


Key words: interventional radiology, coronary angiography, dual axis rotational angiography, radiation dose, phantom