iCVS—Inferring Cardio-Vascular hidden States from physiological signals available at the bedside
Fig 4
Extraction of slow and fast time scales features from venous and arterial blood pressure recordings.
A,B. An example of the raw data, sampled at 125 Hz frequency by the bedside patient monitor. A. Arterial blood pressure, B. Venous blood pressure. Note how these real-life data are noisy, fluctuating, and riddled with artifacts related to patient movement and care. C-G. Features that are extracted from the raw data. C,D. Mean arterial and venous pressures (slow time scale features), E-G. Heart rate, peripheral resistance and pulse pressure (fast time scale features).