title: A new approach for non-intrusive monitoring of blood pressure on a toilet seat.
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.
authors.affiliation: Interdisciplinary Program in Biomedical Engineering, Seoul National University, Seoul, Korea. acamus@bmsil.snu.ac.kr
authors.forename: Jung Soo
authors.initials: JS
authors.lastname: Kim
authors.forename: Young Joon
authors.initials: YJ
authors.lastname: Chee
authors.forename: Ju Wan
authors.initials: JW
authors.lastname: Park
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Choi
authors.forename: Kwang Suk
authors.initials: KS
authors.lastname: Park
mesh_terms: D000328:Adult; D001794:Blood Pressure / Q000502:physiology; D018660:Blood Pressure Monitoring, Ambulatory / Q000379:methods*; D015924:Blood Pressure Monitors; D004562:Electrocardiography; D005263:Femoral Artery / Q000502:physiology; D006801:Humans; D008297:Male; D017156:Photoplethysmography