A new approach for non-intrusive monitoring of blood pressure on a toilet seat.

Kim, Jung Soo; Chee, Young Joon; Park, Ju Wan; Choi, Jin Wook; Park, Kwang Suk
Physiological measurement
2006Feb ; 27 ( 2 ) :203-11.
PMID : 16400206
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Kim, Jung Soo -
Chee, Young Joon -
Park, Ju Wan -
Choi, Jin Wook -
Park, Kwang Suk -
ABSTRACT
Pulse arrival time (PAT) was measured non-intrusively to estimate each individual's blood pressure. Electrocardiogram (ECG) was measured with copper-coated electrodes and photoplethysmogram (PPG) was measured using a specially designed toilet seat apparatus. Non-intrusively measured PATs were compared with PATs measured by the standard method, and the results showed a good correlation. An equation was used to estimate blood pressure from the measured PAT during a training period for each individual. Estimated blood pressures were compared with measured blood pressures in a series of blood pressure varying experiments. For each individual, the estimated blood pressure was similar to the measured blood pressure within a tolerable error range. This method was also practiced for long-term monitoring, and the results show the value of this method for continuous home monitoring of blood pressure.
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MESH
Adult, Blood Pressure/physiology, Blood Pressure Monitoring, Ambulatory/*methods, Blood Pressure Monitors, Electrocardiography, Femoral Artery/physiology, Humans, Male, Photoplethysmography
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Non-intrusively measured PATs were compared with PATs measured by the standard method, and the results showed a good correlation.
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DOI
10.1088/0967-3334/27/2/010
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ICD 03
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