System and method for noninvasively monitoring conditions of a subject

A method for use in determining one or more parameters of a subject, said method comprising;

• (a) irradiating a region of interest of the subject with acoustic tagging radiation, the acoustic tagging radiation comprising at least one acoustic tagging beam being a coded continuous acoustic wave in the form of a predetermined function of at least one parameter of the acoustic radiation varying over time during a measurement time interval, said predetermined time function having a narrow autocorrelation;
• (b) irradiating at least a portion of the region of interest with at least one electromagnetic beam of a predetermined frequency range;
• (c) detecting an electromagnetic radiation response of said at least portion of the region of interest and generating data indicative thereof, said response comprising electromagnetic radiation tagged by the acoustic radiation, thereby enabling processing said data indicative of the detected electromagnetic radiation response, to determine at least one parameter of the subject in a region corresponding to the locations in the medium at which the electromagnetic radiation has been tagged by the acoustic radiation, and output data indicative of the at least one determined parameter.