Title :
Accuracy Assessment of a Noninvasive Device for Monitoring Beat-by-Beat Blood Pressure in the Radial Artery Using the Volume-Compensation Method
Author :
Tanaka, Shinobu ; Nogawa, Masamichi ; Yamakoshi, Takehiro ; Yamakoshi, Ken-ichi
Author_Institution :
Kanazawa Univ., Kanazawa
Abstract :
For the noninvasive and accurate measurement of instantaneous blood pressure (BP) in the radial artery, the performance of a device based on the principle of volume-compensation was assessed by comparison with simultaneous measurement of direct (invasive) radial artery pressure in nine healthy subjects. Bias and precision of systolic BP (SBP) and diastolic BP (DBP) derived from Bland-Altman plots of data from the present system and the direct method averaged -0.5 plusmn 2.1 mmHg and 0.6 plusmn 1.8 mmHg respectively, over a wide range of SBP and DBP. These results clearly indicate that, using this system, instantaneous radial artery pressure can be measured noninvasively with high accuracy.
Keywords :
biomedical equipment; blood pressure measurement; blood vessels; patient monitoring; Bland-Altman plots; beat-by-beat blood pressure; blood pressure monitoring; instantaneous blood pressure; measurement accuracy; noninvasive device; noninvasive measurement; radial artery; radial artery pressure; volume-compensation method; volume-compensation principle; Arterial blood pressure; Arteries; Biomedical measurements; Biomedical monitoring; Blood pressure; Clinical diagnosis; Fingers; Instruments; Pressure measurement; Volume measurement; Indirect beat-by-beat blood pressure measurement; radial artery pressure; volume-compensation method; Algorithms; Blood Pressure Determination; Blood Volume; Diagnosis, Computer-Assisted; Equipment Design; Equipment Failure Analysis; Radial Artery; Reproducibility of Results; Sensitivity and Specificity;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2007.894833
