Accuracy assessment of a noninvasive device for monitoring beat-by-beat blood pressure in the radial artery using the volume-compensation method

Shinobu Tanaka; Masamichi Nogawa; Takehiro Yamakoshi; Ken-Ichi Yamakoshi

doi:10.1109/TBME.2007.894833

Accuracy assessment of a noninvasive device for monitoring beat-by-beat blood pressure in the radial artery using the volume-compensation method

IEEE Trans Biomed Eng. 2007 Oct;54(10):1892-5. doi: 10.1109/TBME.2007.894833.

Authors

Shinobu Tanaka¹, Masamichi Nogawa, Takehiro Yamakoshi, Ken-Ichi Yamakoshi

Affiliation

¹ Tanaka is with the Institute of Nature and Environmental Technology, Kanazawa University, Kakuma-Machi, Kanazawa 920-1192, Japan. shinobu@t.kanazawa-u.ac.jp

PMID: 17926688
DOI: 10.1109/TBME.2007.894833

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 +/- 2.1 mmHg and 0.6 +/- 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.

Publication types

Evaluation Study
Research Support, Non-U.S. Gov't

MeSH terms

Algorithms
Blood Pressure Determination / methods*
Blood Volume / physiology
Diagnosis, Computer-Assisted / instrumentation*
Diagnosis, Computer-Assisted / methods
Equipment Design
Equipment Failure Analysis
Radial Artery / physiology*
Reproducibility of Results
Sensitivity and Specificity