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目的探讨细针穿刺腹部脏器组织行CO2静脉造影的可行性和安全性。方法选择健康雌猪2头和雌犬2条,麻醉后,用25G细穿刺针直视下多点穿刺脾、肝、肾、胰腺、小肠和子宫组织。手推法注射CO2行数字减影静脉造影。结果细针穿刺CO2造影可显示脾门静脉系统、肝静脉、门静脉、肾下腔静脉、子宫卵巢静脉,不能显示胰腺和小肠引流静脉。其中,以脾门静脉系统显示最佳,其影像质量评定结果为A级、B级和C级分别为87.5%(7/8)、12.5%(1/8)和0%;其他依次为肝静脉[A级、B级和C级分别为81.8%(9/11)、18.2%(2/11)和0%]、门静脉[A级、B级和C级分别为77.8%(7/9)、22.2%(2/9)和0%]、肾下腔静脉[A级、B级和C级分别为38.5%(5/13)、61.5%(8/13)和0%]、子宫卵巢静脉[A级、B级和C级分别为0%、33.3%(2/6)和66.7%(4/6)]。术中未发现实验动物的重要生命体征发生改变。结论细针直接穿刺部分腹部脏器组织行CO2数字减影静脉造影是安全可行的。
Objective To investigate the feasibility and safety of fine-needle aspiration of abdominal visceral tissue by CO2 venography. Methods Two healthy female pigs and two female dogs were selected. After anesthesia, the spleen, liver, kidney, pancreas, small intestine and uterus were punctured with 25G fine needle. Manual push injection CO2 digital subtraction venography. Results Fine needle aspiration CO2 angiography can show the splenic portal vein system, hepatic vein, portal vein, renal inferior vena cava, uterine ovary vein, can not show the pancreas and small bowel drainage veins. Among them, the splenic portal vein system showed the best, the image quality assessment results for the A level, B and C were 87.5% (7/8), 12.5% (1/8) and 0%; the other followed by the hepatic vein (81.8% (9/11), 18.2% (2/11), and 0% for grade A, grade B and C, respectively) and portal venous grade [grade A, grade B and grade C were 77.8% (7/9) , 22.2% (2/9) and 0%], renal inferior vena cava (38.5% (5/13), 61.5% (8/13) and 0% Veins [0%, 33.3% (2/6), and 66.7% (4/6)] for grade A, grade B and grade C, respectively. During surgery, no significant changes in vital signs of experimental animals were found. Conclusion It is safe and feasible to perform CO2 digital subtraction venography with direct needle aspiration of abdominal organs.