New oscillometric method for indirect measurement of systolic and mean arterial pressure in the human finger. Part 1: Model experiment

Yamakoshi, K.; Shimazu, Hideaki; Shibata, Masahiro; Kamiya, Akira

doi:10.1007/bf02442797

Cited by 120 publications

(32 citation statements)

References 12 publications

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“…It has also been known that a lot of factors influence arterial wall compliance, such as arterial pressure, temperature and age [4][5]. Among them, pressure is one of the most sensitive factors [6][7][8], which is the difference between the internal pressure (Pi) and external pressure (Po), called transmural pressure. Internal pressure is the same as the blood pressure.…”

Section: Introductionmentioning

confidence: 99%

Effect of external cuff pressure on arterial compliance

Zheng

Allen

Murray

2005

Computers in Cardiology, 2005

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Section: Introductionmentioning

confidence: 99%

Effect of external cuff pressure on arterial compliance

Zheng

Allen

Murray

2005

Computers in Cardiology, 2005

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“…The vertical stress was gradually loaded to the skin surface using linear actuator during monitoring the dermal capillary flow, and the vertical stress when capillary flow was completely stopped was determined as the critical value of compression. In the experiments with the nail-fold in finger, the arterial blood pressure measurements in the same finger were carried out using the cuff-occlusion methods [4]. The arterial pressure of finger was determined by the cuff pressure when the dermal capillary flow in the nail-fold was stopped by occluding the finger at proximal site.…”

Section: Methodsmentioning

confidence: 99%

Observation of capillary flow in human skin during tissue compression using CCD video-microscopy

Shibata

Yamakoshi

et al. 2010

2010 Annual International Conference of the IEEE Engineering in Medicine and Biology

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Recent technological advances of the CCD video-camera have made microscopes more compact and greatly improved their sensitivity. We newly designed a compact capillaroscopy which was composed with a CCD video-probe equipped a contact-type objective lens and illuminator. In the present study, we evaluated usefulness of the instrument for a bed-side human capillaroscopy to observe the capillary flow in various dermal regions. The influences of tissue compression on the dermal capillary blood flow were also investigated to confirm the utility for clinical applications. Our capillaroscopy visualized the nutritional capillary blood flow in almost all parts of skin surface. Our observations showed that a level of vertical stress similar to arterial pressure was required to stop the capillary flow. From these demonstrations the present CCD video-probe based capillaroscopy would be useful for clinical applications as a bed-side human capillaroscopy.

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“…The volume-oscillometric method is based on the nonlinear nature of the pressure-volume characteristics in the artery. When applying a gradual change in counter-pressure externally to the anatomical segment, characteristic changes in the amplitude of arterial volume pulsations produced by the pulse pressure are observed due to the arterial tube law [14], [15]. The determination of SBP and MBP by this method is given as the P c values corresponding to the systolic end point and the point of maximum amplitude of volume pulsation, respectively (see Fig.…”

Section: B Measurement Principlementioning

confidence: 99%

Potential for Health Screening Using Long-Term Cardiovascular Parameters Measured by Finger Volume-Oscillometry: Pilot Comparative Evaluation in Regular and Sleep-Deprived Activities

Yamakoshi

Matsumura

Rolfe³

et al. 2014

IEEE J. Biomed. Health Inform.

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Abstract-We explored the potential of health screening based on the long-term measurement of cardiovascular parameters using the finger volume-oscillometric technique. An automated instrument made simultaneous measurements of key cardiovascular parameters, including blood pressure, pulse pressure, heart rate, normalized pulse volume as an index of α-adrenalin-mediated sympathetic activity, and finger arterial elasticity. These were derived from finger photoplethysmographic signals during application of cuff pressure. To assess the feasibility of achieving a screening function, measurements were made in ten healthy volunteers during 10 days of day-to-day living (normal condition), and carried out several times at a fixed time every day. During successive 10-day measurements, a 30-hour period of total sleep deprivation was introduced as a physiological challenge (abnormal condition). A linear discriminant analysis of the data was conducted to determine whether these two conditions could be discriminated. Periodic data collection was performed rapidly and easily, and the %-correct classifications of normal and abnormal conditions T. Yamakoshi is with the School of Mechanical Engineering, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan (e-mail: takey@staff.kanazawa-u.ac.jp).K. Matsumura and K. Yamakoshi are with the School of Mechanical Engineering, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan (e-mail: kenta16moon @se.kanazawa-u.ac.jp; kyama@staff.kanazawa-u.ac.jp).P. Rolfe is with the Oxford BioHorizons Ltd., 31-33 Albion Place, Maidstone ME14 5DZ UK and the Department of Automatic Measurement and Control, Harbin Institute of Technology, 92 West Dazhi Street, Nan Gang District, Harbin 150001 China (e-mail: PeterRolfe@aol.com).S. Hanaki and J. Lee are with the Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan (e-mail: shanaki@gmail.com; jihyoung@stu.kanazawa-u.ac. jp).A. Ikarashi is with the Department of Medical Engineering, Aino University, 4-5-4 Higashioota, Ibaraki-shi, Osaka 567-0012 Japan (e-mail: a-ikarashi@me-u.aino.ac.jp).were 78.2% and 77.5%, respectively. This ability of the method to discriminate between regular and sleep-deprived activities demonstrates its potential for healthcare screening during day-to-day living. Further investigations using larger age and gender groups of subjects including patients with cardiovascular diseases under real-life situations are required.Index Terms-blood pressure, finger-artery elasticity index, pulse pressure, heart rate, normalized pulse volume, healthcare.

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New oscillometric method for indirect measurement of systolic and mean arterial pressure in the human finger. Part 1: Model experiment

Cited by 120 publications

References 12 publications

Effect of external cuff pressure on arterial compliance

Effect of external cuff pressure on arterial compliance

Observation of capillary flow in human skin during tissue compression using CCD video-microscopy

Potential for Health Screening Using Long-Term Cardiovascular Parameters Measured by Finger Volume-Oscillometry: Pilot Comparative Evaluation in Regular and Sleep-Deprived Activities

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