| abstract |
A sensor head is provided. In any of the various aspects of the invention, the sensor head has a housing enclosing at least two light sources configured to deliver light to a patient and comprising a blue LED first light source that delivers light at an excitatory wavelength and a green LED second light source, and at least one light detector configured to detect light at an emission wavelength from the patient. The sensor is useful for non-invasive monitoring of fluorescent tracers agents. |