Abstract:

Objective Observe the effect of pulsatile pre ⁃ injected physiological saline solutions in en⁃ hanced CT scanning to prevent contrast media extravasation. Methods 10 200 patients who meet the enrollment criteria with routine enhanced CT scanning in our hospital were selected for the study. They were randomly divided into into a control group and a research group，with 5100 patients in each group. Thepatients in the control group were given physiological saline solutions with traditional methods and the patients in research group were given physiological saline solutions with pulsatile pre⁃injection. After the examination，the incidence of contrast media extravasation was compared between the two groups，and the satisfaction with enhanced CT scanning was investigat⁃ ed. The frequency of medical disputes between internal patients and medical staff in the two groups was recorded every 2 months within the study period. Results The incidence of contrast media extravasation in the study group was significantly lower than that in the control group（P < 0.05）. The patients in the study group showed higher sat⁃ isfaction than the control group in the entire set of examinations（P < 0.05）. The frequency of medical disputes be⁃ tween internal patients and medical staff was significantly reduced（P < 0.05）. Conclusion Pulsatile pre⁃injection physiological saline solutions can effectively reduce the incidence of contrast media extravasation in enhanced CT scanning and improve patients′ satisfaction with enhanced CT scanning，which has important clinical application value.

Key words:

enhanced CT scanning, pulsatile pre?injection, contrast media, extravasation