Blood pressure estimation from pulse wave velocity measured on the chest

Puke, Sawa; Suzuki, Takuji; Nakayama, Keiichi I.; Tanaka, Hirokazu; Minami, Shigenobu

doi:10.1109/embc.2013.6610946

Cited by 48 publications

(24 citation statements)

References 9 publications

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“…These methods detect the mean arterial pressure, beat-beat pressure and systolic pressure respectively. Oscillometric method, also known as the pressure cuff method is adapted by sphygmomanometers and this is the most common method to monitor blood pressure [7,8]. Recently, finger cuff method has also become equally popular like the conventional pressure cuff method.…”

Section: Engineering Systems In Blood Pressure Monitoringmentioning

confidence: 99%

Study of nanosensor systems for hypertension associated cerebrovascular and cardiovascular disorders

Ramasamy

Varadan

2015

SPIE Proceedings

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Hypertension and hypertension associated cerebrovascular and cardiovascular diseases are on a rise. At-least 970 million people in the world and Seventy percent of the American adults are affected by high blood pressure, also known as hypertension. Even though blood pressure monitoring systems are readily available, the number of people being affected has been increasing. Most of the blood pressure monitoring systems require cumbersome approaches. Even the noninvasive techniques have not lowered the number of people affected nor did at-least increase the user base of these systems. Uncontrolled or untreated hypertension may lead to various cerebrovascular disorders including stroke, hypertensive crisis, lacunar infarcts intracerebral damage, microaneurysm, and cardiovascular disorders including heart failure, myocardial infraction, and ischemic heart disease. Hypertension is rated as the one of the most important causes of premature death in spite of the technical advances in biomedical technology. This paper briefs a review of the widely adopted blood pressure monitoring methods, research techniques, and finally, proposes a concept of implementing nanosensors and wireless communication for real time non-invasive blood pressure monitoring.

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Section: Engineering Systems In Blood Pressure Monitoringmentioning

confidence: 99%

Study of nanosensor systems for hypertension associated cerebrovascular and cardiovascular disorders

Ramasamy

Varadan

2015

SPIE Proceedings

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“…Pulse Wave Transit Time (PWTT) is defined for each beat as the difference in time between a cardiac wave peak and the next pulse wave valley. PWTT is essentially a byproduct of the ECG and PPG signals, which has been correlated with the pulse amplitude and, subsequently, with stress [8].…”

Section: B Data Pre-processing and Feature Extractionmentioning

confidence: 99%

“…In the current work we use the Toshiba Silmee TM Bar Type, a prototype wearable sensor [8], to collect physiological data in order to predict mood in the work environment. Toshiba Silmee TM Bar Type (shown in Figure 1) is a chest sensor that is able to measure heart rate from electrocardiogram (ECG) sensor, Pulse rate from photoplethysmogram (PPG) sensor, skin temperature and 3-axial acceleration [8].…”

Section: Introductionmentioning

confidence: 99%

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HealthyOffice: Mood recognition at work using smartphones and wearable sensors

Zenonos

Khan

Kalogridis

et al. 2016

2016 IEEE International Conference on Pervasive Computing and Communication Workshops (PerCom Workshops)

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Abstract-Stress, anxiety and depression in the workplace are detrimental to human health and productivity with significant financial implications. Recent research in this area has focused on the use of sensor technologies, including smartphones and wearables embedded with physiological and movement sensors. In this work, we explore the possibility of using such devices for mood recognition, focusing on work environments. We propose a novel mood recognition framework that is able to identify five intensity levels for eight different types of moods every two hours. We further present a smartphone app ('HealthyOffice'), designed to facilitate self-reporting in a structured manner and provide our model with the ground truth. We evaluate our system in a small-scale user study where wearable sensing data is collected in an office environment. Our experiments exhibit promising results allowing us to reliably recognize various classes of perceived moods.

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“…This wearable system can transmit data to a PC or mobile device via Bluetooth and enable continuous monitoring of BP. P. Sawa et al [11] have developed a 4cm length sensor patch which integrates ECG and PPG sensors. By attaching the patch to the sternum, it can capture the pulse wave transit time (PWTT) and estimate the BP.…”

Section: Introductionmentioning

confidence: 99%

Wireless wearable photoplethysmography sensors for continuous blood pressure monitoring

Zhang

Berthelot

2016

2016 IEEE Wireless Health (WH)

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Abstract-Blood Pressure (BP) is a crucial vital sign taken into consideration for the general assessment of patient's condition: patients with hypertension or hypotension are advised to record their BP routinely. Particularly, hypertension is emphasized by stress, diabetic neuropathy and coronary heart diseases and could lead to stroke. Therefore, routine and long-term monitoring can enable early detection of symptoms and prevent life-threatening events. The gold standard method for measuring BP is the use of a stethoscope and sphygmomanometer to detect systolic and diastolic pressures. However, only discrete measurements are taken. To enable pervasive and continuous monitoring of BP, recent methods have been proposed: pulse arrival time (PAT) or PAT difference (PATD) between different body parts are based on the combination of electrocardiogram (ECG) and photoplethysmography (PPG) sensors. Nevertheless, this technique could be quite obtrusive as in addition to at least two contacts/electrodes to measure the differential voltage across the left arm/leg/chest and the right arm/leg/chest, ECG measurements are easily corrupted by motion artefacts. Although such devices are small, wearable and relatively convenient to use, most devices are not designed for continuous BP measurements. This paper introduces a novel PPG-based pervasive sensing platform for continuous measurements of BP. Based on the principle of using PAT to estimate BP, two PPG sensors are used to measure the PATD between the earlobe and the wrist to measure BP. The device is compared with a gold standard PPG sensor and validation of the concept is conducted with a preliminary study involving 9 healthy subjects. Results show that the mean BP and PATD are correlated with a 0.3 factor. This preliminary study shows the feasibility of continuous monitoring of BP using a pair of PPG placed on the ear lobe and wrist with PATD measurements is possible.

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Blood pressure estimation from pulse wave velocity measured on the chest

Cited by 48 publications

References 9 publications

Study of nanosensor systems for hypertension associated cerebrovascular and cardiovascular disorders

Study of nanosensor systems for hypertension associated cerebrovascular and cardiovascular disorders

HealthyOffice: Mood recognition at work using smartphones and wearable sensors

Wireless wearable photoplethysmography sensors for continuous blood pressure monitoring

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