CPC A61B 5/4064 (2013.01) [A61B 5/0075 (2013.01); A61B 5/14553 (2013.01); A61B 5/6814 (2013.01)] | 20 Claims |
20. A method for assessing motion of a biological tissue of a subject, the biological tissue comprising one or more superficial biological layers and a targeted biological layer, the method comprising:
providing one or more wearable elements configured to be arranged on the subject, the one or more wearable elements configured to allow transmission or reception of optical signals to and from the subject at one or more near-infrared wavelengths;
providing an optical perturbation to the one or more superficial biological layers;
transmitting optical signals at the one or more near-infrared wavelengths via the one or more wearable elements;
acquiring a set of optical signal data from the one or more wearable elements preceding, during, or following the optical perturbation at a first acquisition time relative to the optical perturbation; determining, using the set of optical signal data, a set of optical characteristics representative of light transiting the one or more superficial biological layers and the targeted biological tissue;
separating, using the set of optical characteristics and a model of the one or more superficial biological layers and the targeted biological layer, a target optical signal consistent with the targeted biological layer; and
generating a report indicative of a movement of the targeted biological tissue within the subject, wherein the movement of the targeted biological layer is calculated using the target optical signal.
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