Bartels A, Harder D
Institut für Medizinische Physik und Biophysik, Georg-August-Universität Göttingen, Germany.
Clin Phys Physiol Meas. 1992 Aug;13(3):249-56. doi: 10.1088/0143-0815/13/3/004.
A new concept of non-invasive blood pressure measurement by heart sound pattern analysis is described. The known diagnostic criterion of the 'accentuated' second heart sound of a hypertensive patient is here converted into a computer-aided pattern-recognition process for the second heart sound, applicable over the entire scale of blood pressure. After a 'learning phase', during which the second heart sound is recorded, analysed and correlated with a set of systolic blood pressure values of the individual patient, the computer is able to determine systolic blood pressure of the same patient from the acoustic spectrum of the second heart sound with sufficient precision. The method is in principle suited for automatically repeated blood pressure measurements, but further development is still needed for conversion into a widely practicable procedure.
描述了一种通过心音模式分析进行无创血压测量的新概念。高血压患者“第二心音亢进”这一已知诊断标准在此被转化为用于第二心音的计算机辅助模式识别过程，适用于整个血压范围。在一个“学习阶段”，期间记录、分析第二心音并将其与个体患者的一组收缩压值相关联，之后计算机能够从第二心音的声谱中以足够的精度确定同一患者的收缩压。该方法原则上适用于自动重复血压测量，但要转化为广泛可行的程序仍需进一步发展。
