Aaslid R, Brubakk A O
Circulation. 1981 Oct;64(4):753-9. doi: 10.1161/01.cir.64.4.753.
A new noninvasive method for determining arterial blood pressure is presented. Using a fast servo system, the pressure in the arm cuff is controlled so that the flow is maintained at a low value. Transcutaneous ultrasound Doppler techniques are used to detect flow to the artery. Comparison with invasive pressure measurements demonstrated that the servo method reproduced beat-to-beat variations in arterial blood pressure faithfully. Mean arterial blood pressure was determined from the noninvasive recordings using the same mathematically valid procedure as was used for the invasive recordings. The deviation between the invasive and the noninvasive determinations of this measurement was -0.6 +/- 2.2 mm Hg (mean +/- SD) in 23 subjects.
本文介绍了一种测定动脉血压的新的非侵入性方法。使用快速伺服系统控制臂带中的压力，以使血流维持在较低值。采用经皮超声多普勒技术检测流向动脉的血流。与有创压力测量结果的比较表明，该伺服方法能准确再现动脉血压的逐搏变化。使用与有创记录相同的数学有效程序，从无创记录中确定平均动脉血压。在23名受试者中，该测量的有创和无创测定之间的偏差为-0.6±2.2毫米汞柱（平均值±标准差）。
