Impact of heart disease and calibration interval on accuracy of pulse transit time-based blood pressure estimation

Physiological Measurement
Xiao-Rong DingHon Ki Tsang

Abstract

Continuous blood pressure (BP) measurement without a cuff is advantageous for the early detection and prevention of hypertension. The pulse transit time (PTT) method has proven to be promising for continuous cuffless BP measurement. However, the problem of accuracy is one of the most challenging aspects before the large-scale clinical application of this method. Since PTT-based BP estimation relies primarily on the relationship between PTT and BP under certain assumptions, estimation accuracy will be affected by cardiovascular disorders that impair this relationship and by the calibration frequency, which may violate these assumptions. This study sought to examine the impact of heart disease and the calibration interval on the accuracy of PTT-based BP estimation. The accuracy of a PTT-BP algorithm was investigated in 37 healthy subjects and 48 patients with heart disease at different calibration intervals, namely 15 min, 2 weeks, and 1 month after initial calibration. The results showed that the overall accuracy of systolic BP estimation was significantly lower in subjects with heart disease than in healthy subjects, but diastolic BP estimation was more accurate in patients than in healthy subjects. The accuracy of systolic and...Continue Reading

References

Oct 1, 1979·Ultrasonic Imaging·D J HughesJ D Bourland
Jan 11, 1992·Physiological Reviews·A W Cowley
Aug 26, 1998·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·M J ClelandD R Miller
Nov 30, 2000·Medical & Biological Engineering & Computing·W ChenT Togawa
Feb 25, 2003·JAMA : the Journal of the American Medical Association·Daniel W JonesClaude Lenfant
Sep 6, 2005·Journal of Applied Physiology·R A PayneS R J Maxwell
Jun 23, 2009·European Journal of Applied Physiology·Mico Yee-Man WongYuan-Ting Zhang
Dec 17, 2009·Physiological Measurement·Hyun Jae BaekKwang Suk Park
May 18, 2010·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Daniel R WagnerMichael Böhm
Sep 9, 2010·European Journal of Applied Physiology·Mico Yee Man WongJack C Y Cheng
May 11, 2011·European Journal of Applied Physiology·Heiko GescheAndreas Patzak
Feb 2, 2013·IEEE Transactions on Bio-medical Engineering·Mohamad ForouzanfarMiodrag Bolic
Feb 13, 2013·Nature Reviews. Cardiology·Gianfranco ParatiGrzegorz Bilo
Jul 19, 2013·IEEE Transactions on Bio-medical Engineering·Josep SolaClaudio Sartori
Sep 5, 2013·JAMA : the Journal of the American Medical Association·Clara K ChowUNKNOWN PURE (Prospective Urban Rural Epidemiology) Study investigators
Jan 17, 2014·Journal of Atherosclerosis and Thrombosis·Atsushi KohjitaniKazuna Sugiyama
Mar 13, 2014·Journal of Sleep Research·Anna VlahandonisRosemary S C Horne
Apr 25, 2014·IEEE Transactions on Bio-medical Engineering·Ya-Li ZhengYuan-Ting Zhang
Jun 10, 2015·IEEE Transactions on Bio-medical Engineering·Ramakrishna MukkamalaSurvi Kyal
Aug 22, 2015·Physics in Medicine and Biology·Lu DingVasilis Ntziachristos
Sep 29, 2015·IEEE Transactions on Bio-medical Engineering·Xiao-Rong DingHon Ki Tsang

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Citations

May 4, 2017·IEEE Journal of Biomedical and Health Informatics·Fen MiaoYe Li
Apr 26, 2020·Journal of Clinical Medicine·Kaylie WelykholowaMohamed Elgendi
Jul 19, 2020·Clinical Journal of the American Society of Nephrology : CJASN·Jay A PanditDaniel Batlle
May 5, 2020·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Young-Suk Shin
Nov 15, 2018·Journal of Healthcare Engineering·Syed Ghufran KhalidDingchang Zheng
Jan 14, 2021·Biomedical Physics & Engineering Express·Germán FierroFernando Silveira
Mar 4, 2021·Nature Communications·Jürgen FortinBernd Saugel
Sep 28, 2021·Physiological Measurement·Xiaoman XingWen-Fei Dong

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