Development of a 2D laser scanning system for blood perfusion imaging through curved sections of human forearm

Blood flow in microcirculation has found vital role in maintenance of body temperature. Its measurement is vital in the field of skin-vessel reactivity, ageing of skin, micro vascular repair of the ulnar artery and wound healing in association with total elbow replacement. The existing techniques for blood flow measurements like Electromagnetic blood flow measurement, Thermal convection method, Dual radiographie method, Ultrasonic Blood flow measurement and NMR method are not found suitable for measurement of blood flow in microcirculation due to their large size, complexity, invasive nature of measuring element and possibility of radiation exposure to the patient. Hence, a new technology is developed for micro vascular blood flow or velocity measurement using He-Ne laser of wavelength 632.8nm.