Newell S, Brimacombe J
Department of Anaesthetics, Cairns Base Hospital, Queensland.
Anaesth Intensive Care. 1995 Apr;23(2):203-5. doi: 10.1177/0310057X9502300215.
Train-of-four (TOF) ratios are compared between a new homemade force pressure transducer and a commercially available accelerometer. Twenty adult patients were studied and 600 simultaneous TOF ratio pairs were recorded during anaesthesia with varying degrees of muscle relaxation. Laboratory testing revealed that the output from the homemade device was linear up to 900 g and that there was a linear relationship between the output from the new device and the accelerometer (y = 0.802x + 5.167, R = 0.943, t = 69, P < 0.0001). Although the homemade device underestimates the accelerometer TOF ratio by 20%, it is a reliable and economic alternative to commercially available products for measuring TOF ratios.
将一种新型自制力压力传感器与市售加速度计的四个成串刺激（TOF）比率进行比较。对20名成年患者进行了研究，在麻醉期间不同程度肌肉松弛状态下记录了600对同步TOF比率。实验室测试表明，自制设备的输出在高达900克时呈线性，并且新设备的输出与加速度计之间存在线性关系（y = 0.802x + 5.167，R = 0.943，t = 69，P < 0.0001）。尽管自制设备比加速度计的TOF比率低估值为20%，但它是测量TOF比率时市售产品的一种可靠且经济的替代品。
