| 摘要 |
Methods and apparatus for monitoring the heart motion of a subject employ a probe which can be coupled to a portion of the anatomy of a subject such as the aortic arch or the thyroid cartilage. The probe is biased into contact with the subject. The probe detects movements caused by the heart motion. The apparatus may display accelerations and displacements caused by the heart motion. Waveforms from multiple anatomic sites may be acquired, normalized in time and amplitude, and combined to produce resultant waveforms. Combining the waveforms may involve addition or subtraction. |
