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增强CT扫描对于许多疾病的定性诊断至关重要,通常由护士用常规注射器推注或滴注。然而手工注射受速度和精度诸因素影响,对一些特殊病例往往难以达到目的,直接影响诊断质量。尤其于近年推出的螺旋CT,其扫描速度极快、可克服运动伪影的干扰,用来进行一些特殊处理和三维重建、CT血管造影等,因而对造影剂的注射技术提出更高要求。CT专用自动注射器则为螺旋CT助了一臂之力。由于自动注射器应用的时间不长,在国内用户不多,对甚优越性少见介绍。二年多来应用自动注射器的体会,对其进行总结交流,供同道参考和借鉴。
Enhanced CT scan is crucial for the qualitative diagnosis of many diseases, usually by nurses using conventional syringes bolus or infusion. However, manual injection by the speed and accuracy of various factors, for some special cases are often difficult to achieve the purpose of a direct impact on the quality of diagnosis. Especially in recent years, spiral CT has extremely fast scanning speed and can overcome the interference of motion artifacts and is used for some special treatment, three-dimensional reconstruction and CT angiography. Therefore, higher requirements are put forward on the injection technique of contrast medium. CT-specific auto-injector spiral CT help. As the application of auto-injector is not long, few users in the country, very rare on the rare introduction. More than two years of experience in the application of auto-injector, to summarize the exchange for fellow reference and reference.