Methods and systems for detecting venous pulsation are provided. In accordance with an exemplary embodiment of the present technique, there is provided a method for detecting venous pulsation, including acquiring a first signal corresponding to absorption at a first near-infrared wavelength, acquiring a second signal corresponding to absorption at a second near-infrared wavelength, deriving an offset metric from the first and second signals, and detecting the presence of venous pulsation based on the offset metric. The method further includes correcting calculations of physiological parameters such as, for example, blood oxygen saturation, when venous pulsation is detected.
