ABSTRACT
Objective To investigate the clinical effectiveness of peripherally inserted central catheters(PICC) and peripheral intravenous catheters(PIV) in tumor chemotherapy. Methods A total of 180 patients with intravenous chemotherapy were randomly divided into two groups. 108 patients in the PICC group, 72 patients in the PIV group. The holding time and complications were observed and compared. Results The rate of complication in the PICC group were much lower than the PIV group, however was much longer than the PIV group in holding time. But there was no statistical difference in the positive culture rate of bacteria of two groups. Conclusions It is very safe to use PICC which can reduce the rate of complication of catheters and venipuncture times and is worthy of spreading in practice.
ABSTRACT
Objective To evaluate the influencing factors on image quality and the value of clinical application of coronary artery angiography with 16-slice spiral CT.Methods 16-slice spiral CT angiography was performed in 31 suspected coronary heart disease(CHD).All patients were examined in ordinary scanning (slice 3 mm) and coronary artery scanning (slice 1 mm)with the technique of retrospective electrocardiography gating,and multiplanar reconstruction(MPR),maximum intensity projection(MIP) and volume reconstruction technology(VRT) were done.The showing rate of coronary arteriae,the detecting rate of CHD and the influencing factors on image quality were evaluated by CT.Results 16-slice spiral CT could clearly show RCA1,RCA2,LAD1,LAD2,,LCX1.The image quality was affected by heart rate,breath movement and much calcification in artery,etc.Conclusion 16-slice spiral CT is of significant value in screening and diagnosing coronary artery disease.