Abstract: Systems and methods for imaging breath-hold (BH)-induced oxygenation changes in a patient are provided. A non-invasive, non-contact device can be used to image BH-induced oxygenation changes in one or more parts (e.g., foot) of a patient. The patient can hold his or her breath for a set amount of time while imaging is performed using the device, and the imaging can be performed before and/or after the time while the patient is holding his or her breath as well (e.g., during a recovery period). This enables tissue oxygenation based flow correlation independent of melanin concentration (e.g., skin color) of the patient and/or the curvature of the tissue (of the patient) being imaged.

Abstract: Systems, devices, and methods for performing peripheral vascular imaging are provided. A continuous wave, non-contact, near-infrared optical scanner (NIROS) can utilize at least one near-infrared (NIR) light. The diffuse reflected NIR signal(s) can be obtained from the surface of the tissue of the mammal being imaged. The signal(s) can be optically filtered and can be detected by an NIR-sensitive image sensor. A graphical user interface (GUI) can be used to automate the acquisition of the spatio-temporal diffuse reflected maps from the NIROS device.

Abstract: Systems and methods for imaging breath-hold (BH)-induced oxygenation changes in a patient are provided. A non-invasive, non-contact device can be used to image BH-induced oxygenation changes in one or more parts (e.g., foot) of a patient. The patient can hold his or her breath for a set amount of time while imaging is performed using the device, and the imaging can be performed before and/or after the time while the patient is holding his or her breath as well (e.g., during a recovery period). This enables tissue oxygenation based flow correlation independent of melanin concentration (e.g., skin color) of the patient and/or the curvature of the tissue (of the patient) being imaged.