摘要
目的回顾性分析与评价应用颈外静脉作CT增强注射通道的效果。方法收集我院2002年5月至2002年10月期间进行CT增强扫描病例1250例,男692例,女558例,年龄分布12～86岁,平均年龄49岁。均采用美国MedradMCT310自动高压注射器,注射针头为TERUMO牌一次性头皮针21G,造影剂为德国先灵公司65%优维显(Ultravist)2～3ml/kg。全部患者均先采用手背静脉或前臂静脉穿刺注射造影剂,大多数获得满意效果。其中96例患者因上肢静脉状态不佳或穿刺失败后即改用颈外静脉作注射造影剂通道获得成功。结果颈外静脉作为CT增强注射通道均获一次穿刺成功。结论行CT增强检查的患者大多年老体弱,恶病质或前臂及手背血管经化、放疗后状况不佳,而CT增强又需快速(Bolus注射)、大量地注射造影剂,颈外静脉恰有距心脏近、管腔粗大、位置表浅、易成功穿刺等特点。经我们96例临床验证认为对临床在手部较难穿刺的患者颈外静脉作为CT增强检查时的静脉注射通道较为理想。
Objective A retrospective analysis and evaluation the effects of contrast enhanced computed tomography through external jugular access. Methods 1250 cases (male 692 and female 558) underwent CT contrast enhanced examination were retrospectively reviewed from May,2002 to Oct,2002.The patients aged from 12 to 86 years , averagely 49 years.Contrast agent(Ultravist)was given through an intravenous catheter placed in the cubital vein.Precise injection rates were ensured by a power injector(Medradm CT310,USA). Excellent enhancement was achieved with this protocol in most of the patients,while external jugular access was established in 96 cases because it was unable to setup a cubital venous access.Results Good enhancement were acquired when 96 cases of contrast agent injected through external jugular vein.And the external jugular access was setup successfully with a single puncture.Conclusion It is a common occasion when patient undergoing contrast enhanced CT scan is in poor conditions: debility, cachexia ,or with complication of chemotherapy or radiation therapy,which often results in invalidity of cabital venous access,and consequently ,making bolus injection impossible.The external jugular vein is a large and central blood vessel, which is easy to setup an access .In our experience ,an external jugular access should be recommended as a substitution if the cubital venous access is not available. [
出处
《影像诊断与介入放射学》
2005年第1期53-54,共2页
Diagnostic Imaging & Interventional Radiology
