Cardiac cycle phase uncertainty: another source of error in indirect blood pressure measurement
作者:
HatsellC. P.,
期刊:
Journal of Medical Engineering&Technology
(Taylor Available online 1992)
卷期:
Volume 16,
issue 4
页码: 157-158
ISSN:0309-1902
年代: 1992
DOI:10.3109/03091909209030219
出版商: Taylor&Francis
数据来源: Taylor
摘要:
Cardiac cycle phase uncertainty causes a small error in indirect estimation of arterial blood pressure by sphygmomanometry. A simple analysis yields a statistical description of the error and a rule for its reduction: correct bias by adding to the systolic estimate and subtracting from the diastolic estimate one-half of the per-cardiac-cycle cuff deflation decrement. If several measurements are taken, the least-square estimate is approximately the arithmetic mean of the greatest and least of the bias corrected estimates.
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