| 摘要 |
An apparatus and method for measuring hemodynamic parameters includes a sound velocity sensor attached to catheter (22), and is coupled to at least one of an arterial or venous portion (12) of a blood system. An indicator medium is injected into the blood system via catheter (22) at location (26) upstream of the sensor to dilute the bloodstream, and the sensor detects the dilution through changes in measured sound velocity. The changes are recorded and used to determine hemodynamic parameters. |
