Combs J T
Pediatr Infect Dis J. 1988 May;7(5):329-30. doi: 10.1097/00006454-198805000-00007.
There have been conflicting reports about the accuracy of the acoustic reflectometer in detecting middle ear fluid. A recording device connected to the reflectometer prints a graph showing the value of reflectivity to 0.1 unit. Twenty-four ears of children with suspected acute otitis media were studied. Ten reflectivity values were obtained for each patient. The mean standard deviation was 0.20 unit. Thus the imprecision of the instrument previously reported can be overcome by the recording device.
关于声反射仪检测中耳积液准确性的报道相互矛盾。连接到反射仪的记录设备会打印出一张图表，显示反射率值精确到0.1单位。对24名疑似急性中耳炎儿童的耳朵进行了研究。为每位患者获取了10个反射率值。平均标准差为0.20单位。因此，先前报道的该仪器的不精确性可以通过记录设备来克服。
