Estimation of systolic blood pressure variations from pulse arrival time using a narrow-band filter

Chen, W.; Kobayashi, Toshio; Togawa, Tatsuo; Ichikawa, Seiichi; Takeuchi, Yasuo

doi:10.1109/iembs.1999.802297

Cited by 4 publications

(6 citation statements)

References 1 publication

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“…This implied that PEP should not be neglected or removed from PAT measurements if PAT is to be used as a parameter for non-invasive SBP prediction. Current cuffless BP estimation methods (Chen et al 1999;Heard et al 2000;Poon and Zhang 2005;Zong et al 1998) are developed based on the TT models. BP is usually represented in terms of the inverse of TT in these estimation algorithms.…”

Section: Pat Versus Pepmentioning

confidence: 99%

“…As the summation of TT and PEP, PAT therefore includes the duration of the electro-mechanical delay, the period of isovolumetric contraction in the heart and the time taken for the pressure pulse to propagate in the arteries. PAT has also been shown to be related to BP in a significant number of research studies (Allen et al 1981;Harris et al 1973;Lane et al 1983;Muehlsteff et al 2006;Newlin 1981;Pollak and Obrist 1983;Scalzi et al 1986) and it could offer arterial BP estimation under well-controlled conditions without using a cuff (Chen et al 1999;Heard et al 2000;Poon and Zhang 2005;Zong et al 1998).…”

Section: Introductionmentioning

confidence: 96%

“…The measurement of pulse arrival time (PAT) could potentially provide continuous cardiovascular information (Smith et al 1999) and monitoring of blood pressure (BP) non-invasively (Chen et al 1999;Heard et al 2000;Poon and Zhang 2005;Zong et al 1998). Since BP estimation using the PAT-approach does not employ the inflation and deflation of an occlusive cuff, it overcomes the general limitations of auscultatory and oscillometric BP measuring techniques, such as discomfort to users due to the inflation of cuff and necessarily intermittent readings.…”

Section: Introductionmentioning

confidence: 99%

“…It is noteworthy that the aforementioned cuffless BP measurements (Chen et al 1999;Heard et al 2000;Poon and Zhang 2005;Zong et al 1998) were developed based on TT models (Moens-Korteweg and Bramwell-Hill models (McDonald 1974)), but most of them estimated BP using PAT measurement. The PEP inclusion in PAT measurement might consequently affect the accuracy of cuffless BP measurement.…”

Section: Introductionmentioning

confidence: 99%

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The effects of pre-ejection period on post-exercise systolic blood pressure estimation using the pulse arrival time technique

et al. 2010

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Pulse arrival time (PAT) is comprised of the vascular transit time (TT) through the arterial system and the pre-ejection period (PEP) in the heart. It has been used to predict arterial blood pressure (BP) without using a cuff. The aim of this study was to investigate the effects of including the PEP on the accuracy of cuffless systolic BP (SBP) estimation using the PAT technique in post-exercise recovery. Experiments were conducted on 22 normotensive participants. PAT, TT and PEP were determined from simultaneous measurements of the electrocardiogram, photoplethysmogram and impedance cardiogram. Moderate exercise induced significant (p < 0.05) increases in SBP and heart rate and significant (p < 0.05) decreases in PEP and PAT. Diastolic blood pressure and TT only varied insignificantly (p > 0.05). SBP was moderately correlated with PEP (r = -0.61) and PAT (r = -0.81). PAT and PEP were moderately correlated (r = 0.67). When SBP was estimated using least-squares methods, the differences between the measured and predicted SBP using PEP, PAT and TT were 0.0 ± 6.6, 0.0 ± 4.9 and 0.0 ± 9.3 mmHg, respectively. The findings suggested that PAT gives the best SBP prediction and PEP has some potential to predict blood pressure. The inclusion of PEP in the PAT measurement is necessary to facilitate accurate cuffless blood pressure prediction after exercise.

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Section: Pat Versus Pepmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effects of pre-ejection period on post-exercise systolic blood pressure estimation using the pulse arrival time technique

et al. 2010

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“…In another paper a narrow-band filtering method was explored to improve the correlation between systolic blood pressure and pulse arrival time. The results suggested that although it may be difficult to estimate systolic blood pressure from pulse arrival time with acceptable accuracy, possibilities still remain to utilize changes of pulse arrival time as an indicator of changes in systolic blood pressure [4].…”

Section: Introductionmentioning

confidence: 99%

Continuous blood pressure monitoring using pulse wave delay

Meigas

Kattai

Lass

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Abstract-Proposed paper is a part of a research to develop a convenient method for continuous monitoring of blood pressure by non-invasive and non-oscillometric way. The method is based on a presumption that there is a singular relationship between the velocity of pulse wave and blood pressure for a person. The detection of the velocity of pulse wave is based on the registration of the mechanical movements of blood vessel's walls and computing the time delay in different regions of the human body using an ECG as a reference signal. Additional information about the blood pressure evaluation is gotten from the photoplethysmographic (PPG) channel. Used optical method, which is able to detect pulsation profiles of the blood vessels, is based on the self-mixing that occurs in the diode laser cavity when the radiation, scattered back by the skin into the laser, interferes with the field inside it and causes the changes of the laser pump current. National Instruments software LabView for Windows is used for output signal digitalization and processing purposes.

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Multi agent system for estimation of cardiovascular parameters

Al-Jaafreh

Al-Jumaily

2005

2005 1st International Conference on Computers, Communications, &Amp; Signal Processing With Special Track on Biomedical Engine

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Estimation of systolic blood pressure variations from pulse arrival time using a narrow-band filter

Cited by 4 publications

References 1 publication

The effects of pre-ejection period on post-exercise systolic blood pressure estimation using the pulse arrival time technique

The effects of pre-ejection period on post-exercise systolic blood pressure estimation using the pulse arrival time technique

Continuous blood pressure monitoring using pulse wave delay

Multi agent system for estimation of cardiovascular parameters

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