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http://dx.doi.org/10.5392/JKCA.2019.19.11.445

Syringe Reuse Issues in Automated Contrast Injection System in Dynamic Magnetic Resonance Imaging  

Son, Soon-Yong (원광보건대학교 방사선과)
Publication Information
The Journal of the Korea Contents Association / v.19, no.11, 2019 , pp. 445-450 More about this Journal
Abstract
This study proves that syringe reuse of automated injection system entails a risk of contrast media reflux and saline solution contamination which are pumped by a piston into the patients' venous cannula in the dynamic MR images, we will be aware of the serious problem. To quantify the contrast media contamination effect on the saline solution, identical volume of the saline solution was collected before and after the contrast injection to the patients' venous cannula following T1 weighted image scanning to verify whether signal intensities differences are observed. The signal intensity of saline solution after the contrast injection was significantly higher than that of saline before injection by 523.43%. This result is due to the backflow that contaminates the saline solution on the opposite side when the contrast agent is injected. In conclusion, the syringe used to inject contrast medium. causes cross-contamination due to contrast reflux. Therefore, even if the same patient's examination is used for quantitative analysis, the error should be avoided by changing the acquisition sequence or replacing the syringe.
Keywords
Reflux of Corast Agent; Saline Solution Contamination; Dynamic Magnetic Resonance Imaging; Auto Injector;
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