Krasny R, Besgen J, Birkenkamp H, Klose K C, Günther R W
Klinik für Radiologische Diagnostik, Klinikum der RWTH Aachen.
Rofo. 1990 Apr;152(4):425-9. doi: 10.1055/s-2008-1046898.
The use of CO2 as contrast medium for DSA requires accurate and reproducible doses of the gas. This cannot be achieved by manual injection or by using injectors designed for liquid contrast media. For this reason a new gas injector has been developed which meets these requirements despite the compressibility of gas. The suitability and ease of use of the injector has been confirmed in experiments on 15 dogs. At the same time optimal volumes for different vessels with varying diameters have been determined. It has been shown that the injection parameters (gas speed and volume) in small vessels up 10 mm. diameter are not critical. With increasing vessel diameter accurate gas dose becomes important in order to perform optimal angiograms safely.
使用二氧化碳作为数字减影血管造影（DSA）的造影剂需要精确且可重复的气体剂量。这无法通过手动注射或使用为液体造影剂设计的注射器来实现。因此，已开发出一种新型气体注射器，尽管气体具有可压缩性，但它能满足这些要求。该注射器的适用性和易用性已在对15只狗进行的实验中得到证实。同时，已确定了不同直径血管的最佳注射量。结果表明，直径达10毫米的小血管中的注射参数（气体速度和体积）并非关键因素。随着血管直径的增加，为了安全地进行最佳血管造影，精确的气体剂量变得至关重要。
