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.
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