혈압측정시 가압 단계에서 목표압력 및 측정 종료압력 추정Estimation of Target and Completion Pressure during the Cuff Inflation Phase in Blood Pressure Measurement
- Other Titles
- Estimation of Target and Completion Pressure during the Cuff Inflation Phase in Blood Pressure Measurement
- Authors
- 오홍식; 김영수; 신동범; 김인영; 지영준; 이종실
- Issue Date
- Oct-2008
- Publisher
- 대한의용생체공학회
- Keywords
- blood pressure; oscillometric; Inflation; non-invasive blood pressure measurement
- Citation
- 의공학회지, v.29, no.5, pp.371 - 375
- Indexed
- KCI
- Journal Title
- 의공학회지
- Volume
- 29
- Number
- 5
- Start Page
- 371
- End Page
- 375
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177760
- ISSN
- 1229-0807
- Abstract
- In blood pressure measurement, the oscillometric method detects and analyzes the pulse pressure oscillation while deflating the cuff around the arm. For its principle, one has to inflate cuff pressure above the subject’s systolic pressure and deflate below the diastolic pressure. Most of the commercialized devices inflate until the fixed target pressure and deflate until the fixed completion pressure because there is no way to know the systolic and diastolic pressure before measurement.
Too high target pressure makes stress to the subject and too low target pressure makes big error or long measurement time because of re-inflation. There are similar problems for inadequate completion pressure. In this study, we suggest new algorithm to set proper target and completion pressure for each subject by analyzing pressure waveform while inflating period.
We compared our proposed method and auscultation method to see the errors of estimation. The differences between the two measurements were -4.02 ± 4.80mmHg, -10.50 ± 10.57mmHg and -0.78 ± 5.17mmHg for mean arterial pressure, systolic pressure and diastolic pressure respectively. Consequently, we could set the target pressure by 30 mmHg higher than our estimation and we could stop at 20mmHg lower than our estimated diastolic pressure. Using this method, we could reduce the measurement time.
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