Introduction
VAE, traumatic vascular injury
VENOUS AIR EMBOLISM, COMPLICATION
Venous air embolism (VAE) is a potentially life-threatening complication of intravenous injection or traumatic vascular injury [The currently used high-pressure injectors are mostly equipped with air sensing systems that can efficiently forewarn or halt in case of the existence of air within their tubes, thus preventing air from entering the body. However, the air generated during external tube connection may not be effectually exhausted by the conventional method of saline test injection. The injection processes are hard to be observed by technicians, nurses, and patients, thus making it inconspicuous whether there are air bubbles entering the body of patients during the injection with contrast agent [Therefore, it is practically significant to probe methods of decreasing the occurrence of air emboli during the injection of contrast agents. Nevertheless, few Chinese references report the specific solutions for repressing the generation of venous air emboli during CTA examination. Hence, this research discussed the feasibility of decreasing the occurrence of venous air emboli introduced during tube connection through the use of a modified method of saline test injection, with coronary CTA (CCTA) as an example.