肝功能储备分析仪(ICG)质量控制的探讨
2024-07-08金鑫吴路平朱婷婷
金鑫 吴路平 朱婷婷



摘要:通过对肝功能储备分析仪探头的测试,评价其检测功能的精确度,以保证肝功能储备分析仪检测结果的准确性及有效性。利用探头对吲哚菁绿药物浓度的探测敏感性,对稀释后不同浓度的吲哚菁绿进行检测并将检测结果与实际吲哚菁绿浓度进行对比,以此验证探头的精确性。经过对比发现,在理想试验状态下,使用2年以内探头的检测精确度误差小于0.5%,使用2~4年探头的检测精确度误差约1%,使用4年以上探头的检测精确度误差大于2%。为了保证肝功能储备分析仪检测结果的准确性与有效性,使用2年以内的探头应每年检测1~2次,使用2~4年的探头应每年检测2~4次,使用4年以上的探头应每月检测1次或直接更换新探头。
关键词:肝功能储备分析;吲哚菁绿;光谱探头
中图分类号: O 435 文献标志码: A
Discussion on quality control of liver functionreserve analyzer (ICG)
JIN Xin1,WU Luping2,ZHU Tingting1
(1. Shanghai Seventh People's Hospital, Shanghai 200137, China;
2. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science andTechnology, Shanghai 200093, China)
Abstract: By testing the probe of the liver function reserve analyzer, the accuracy of its detection function is evaluated to ensure the accuracy and validity of the detection results of the liver function reserve analyzer. Using the probe's detection sensitivity to the concentration of indocyanine green drugs, detect different concentrations of indocyanine green after dilution and compare the detection results with the actual concentration of indocyanine green to verify the accuracy of the probe.After comparison, it is found that under ideal test conditions, the detection accuracy error of the probe within 2 years is less than 0.5%, the detection accuracy error of the probe using 2-4 years is about 1%, and the detection accuracy error of the probe using morethan 4 years is greater than 2%. In order to ensure the accuracy and validity of the test results of the liver function reserve analyzer, the probe used within 2 years should be tested 1-2 times a year, the probe used for 2-4 years should betested 2-4 times a year, and the probe used for more than 4 years The probe should be tested once a month or directly replaced with a new probe.
Keywords: analysis of liver function reserve; indocyanine green; spectral probe
引言
肝功能储备分析仪又称吲哚菁绿(Indocyanine Green)试验分析仪,该设备采用注射吲哚菁绿的方法,使吲哚菁绿与人体血红蛋白相结合,通过肝脏的快速代谢清除,连续检测一定时间内人体血液中吲哚菁绿浓度的变化,从而评估肝脏的排泄功能及有效血流量[1]。其通过光谱探头采集人体内吲哚菁绿药物含量并进行计算分析,用于评价人体肝脏代谢与肝功能指标,分析各种原因的肝损伤、肝纤维化及肝硬化及终末期肝病患者的有效肝脏血流量。特别是对于需要接受肝脏手术的肝硬化、肝癌等患者,肝功能储备分析仪可进行术前、术中及术后的肝脏储备功能定量评估,预测和避免术后肝脏衰竭的发生[2]。……
