1. A Laser Perfusion Imaging system comprising: at least one coherent light source configured to illuminate a selected area of interest of an object for determining flow-related data of the selected area; a light collecting optic; at least one image sensor including a randomly addressed 2D array of integrating photo detectors that receive collected light intensity, the at least one image sensor being configured to detect a laser Doppler signal from the selected area of interest of the object; a control unit; a signal processor unit; and a display unit configured to display results, wherein the integrating photo detectors are configured to integrate a charge when the detectors capture photons, said charge being subsequently converted into an output signal linearly proportional to the number of photons captured by each detecting pixel.