Abstract
The purpose of this study was to investigate the injection pressure reduction effect of the novel indwelling needle (Becton, Dickinson and Company). We evaluated the period of 651 patients who underwent dynamic computed tomography. We compared the maximum injection pressure. The contrast medium was administered at 320, 350, and 370 mgI/ml. The maximum injection pressure of the novel indwelling needle in 22 G was decreased 10% compared with SC5 in all contrast media. The maximum injection pressure of BDN in 20 G decreases 8% compared with SC5 at 370 mgI/ml, but there was no reduction at 320 mgI/ml and 350 mgI/ml. Our analysis demonstrated that BDN significantly reduced the injection pressure especially in 22 G and using high concentration contrast medium in 20 G.
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