论文部分内容阅读
目的:观察电阻抗成像仪对闭合性腹腔内出血的监护结果。方法:采用体质量20~30kg、腹围与人近似的小猪为实验动物。将小猪取左侧卧位,从猪耳缘静脉注入肝素钠1.25万u后,在B超引导下置入穿刺针(G9)于肝脏表面,行“+”形切割肝脏表面实质,造成肝脏出血。拔除穿刺针,形成1个闭合性腹腔内出血状态。然后用电阻抗成像仪进行监护,观察成像反应。在监护结束后对小猪解剖证实实验结果。结果:(1)电阻抗成像仪出现明显成像反应,目标区域出现颜色变化,并随着时间的延长颜色逐渐加深,出现颜色区域扩大。(2)解剖发现小猪腹腔内有大量不凝血液,在肝脏表面可见“+”形切割创面,可见该切割创面仍渗血。结论:电阻抗成像用来监护腹腔内出血能产生明显的成像结果,故该技术可以用来进行人体出血监护。
OBJECTIVE: To observe the monitoring result of electrical impedance imager on closed intraperitoneal hemorrhage. Methods: The body weight of 20 ~ 30kg, abdomen and human approximate piglets as experimental animals. The piglets left lateral position, from the pig ear vein heparin sodium 125000 u, under the guidance of the B into the puncture needle (G9) in the liver surface, line “+” shape cut the surface of the liver essence, Cause liver bleeding. Remove the puncture needle to form a closed intraperitoneal hemorrhage state. Then use the impedance imager for monitoring and observe the imaging reaction. Anatomy of the piglet after the end of guardianship confirmed the experimental results. Results: (1) The electrical impedance imager showed obvious imaging reaction, the color of the target area changed, and the color gradually deepened with the extension of time. (2) Anatomical findings There was a large amount of non-coagulated blood in the abdominal cavity of the piglet, and a “+” shaped cutting wound was seen on the surface of the liver, showing that the wound was still oozing. CONCLUSIONS: Electrical impedance tomography is used to monitor intraperitoneal hemorrhage to produce significant imaging results, so this technique can be used for human bleeding monitoring.