Paul Stanley Addison,Rui Wang,Scott McGonigle,James N. Watson
申请号：
US14259812
公开号：
US20140316278A1
申请日:
2014.04.23
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The present invention relates to physiological signal processing, and in particular to methods and systems for processing physiological signals to predict a fluid responsiveness of a patient. A medical monitor for monitoring a patient may include an input receiving a photoplethysmograph (PPG) signal representing light absorption by a patients tissue, and a fluid responsiveness predictor (FRP) calculator programmed to calculate an FRP metric. The monitor also may include a memory storing a relationship between the FRP metric and a pulse pressure variation (PPV) metric. The FRP metric is calculated based on a respiratory variation of the PPG signal and based on the relationship.
