NONINVASIVE ESTIMATION OF THE BLOOD PRESSURE WAVEFORM IN THE CAROTID ARTERY USING CONTINUOUS FINGER BLOOD PRESSURE MONITORING

Tim Idzenga*, Koen D. Reesink, Youri van Swelm, Hendrik H. G. Hansen, Suzanne Holewijn, Chris L. de Korte

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Web of Science)

Abstract

To noninvasively estimate the blood pressure continuously in the common carotid artery (CCA), we obtained the distension waveform of the CCA from seven healthy volunteers and 20 hypertensive patients using radio-frequency ultrasound. Consequently, it was calibrated by the mean and diastolic pressure measured in the finger artery and compared with applanation tonometry, calibrated using the systolic and diastolic pressure in the brachial artery. The mean difference in estimating the mean blood pressure was 0.3 mm Hg (limits of agreement: -11.7 to 12.3 mm Hg). In estimating the systolic blood pressure, the mean difference was 8.0 mm Hg (limits of agreement: -29.8 to 45.8 mm Hg) and showed increasing variation with blood pressure. The systolic blood pressure values can be expected between 0.83 and 1.35 times the control method. In this study, we obtained proof-of-principle for noninvasively measuring blood pressure in the CCA using continuous finger blood pressure monitoring. This opens the way to estimating location specific arterial stiffness and intra-plaque elasticity. (E-mail: t.idzenga@rad.umcn.nl)
Original languageEnglish
Pages (from-to)1998-2006
JournalUltrasound in Medicine and Biology
Volume38
Issue number11
DOIs
Publication statusPublished - Nov 2012

Keywords

  • Blood pressure
  • Tonometry
  • Atherosclerosis
  • Ultrasound
  • Arterial stiffness
  • Vulnerable plaques

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