总之，临床症状不能很好地预示低血氧症，在资源匮乏的医疗机构进行脉搏血氧测量并借此判断是否采取吸氧疗法可以节省成本。
Overall, however, clinical signs are poor predictors of hypoxaemia, and using pulse oximetry in resource-poor health facilities to target oxygen therapy is likely to save costs.
收集的数据包括所有术前的脉搏血氧定量法记录，也就是术前动脉血气测量，以及房间隔气囊造口术过程数据。
Data collected included all preoperative pulse oximetry recordings, all values from preoperative arterial blood gas measurements, and BAS procedure data.
方法：根据双波长无创测量法的数学模型，分析临床试验中脉搏血氧仪产生测量误差的原因。
Methods: To analyze the reasons of error caused by the pulse oximeter in the clinical test on the basis of the mathematical model of double wavelengths noninvasive measurement of blood oxygenation.
本课题旨在设计一种适用于家庭保健和社区医疗的便携式无创脉搏血氧饱和度测量仪，这个系统具有尺寸小，重量轻的特点。
In order to meet the need of family community, this subject is to design a portable non-invasive pulse oximetry, the system has advantages of small size, light weight.
在弱灌注条件下，无创脉搏血氧饱和度的测量存在着准确度不高的问题。传感器采集信号的信噪比低是导致该问题的主要原因之一。
Under the condition of low perfusion, the measurement of non-invasive saturation of pulse-blood oxygen is low-accuracy, lower signal-to-noise ratio (SNR) is one of the crucial causations.
在弱灌注条件下，无创脉搏血氧饱和度的测量存在着准确度不高的问题。传感器采集信号的信噪比低是导致该问题的主要原因之一。
Under the condition of low perfusion, the measurement of non-invasive saturation of pulse-blood oxygen is low-accuracy, lower signal-to-noise ratio (SNR) is one of the crucial causations.
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