| 摘要 |
<p>A method of cardiac physiologic monitoring is disclosed comprising the steps of: (a) utilizing an external ultrasonic transducer element attached to a patient to determine an information signal indicating of blood floe within a patient's heart; (b) processing the information signal to determine physiologic parameters associated with the heart. The physiologic parameters can include at least one of transaortic peak velocity, mean transvalvular pressure gradient, time velocity integral, stroke volume, cardiac output or any other product as an analogue of output. The method can preferably include monitoring the change in time of the physiologic parameters through continual monitoring of the information signal. The monitoring step preferably can include determining an alarm state if the parameters are preferably outside a predetermined range. The external ultrasonic transducer preferably can include an attached handle operative to position the transducer in a predetermined orientation to the patient's heart.</p> |
