1. A system for determining information associated with at least one portion of an anatomical structure, comprising: at least one arrangement configured to: a. detect an interference between at least one first radiation associated with a radiation directed to the anatomical structure and at least one second radiation associated with a radiation directed to a reference, b. generate three-dimensional volumetric data for the at least one portion as a function of the interference, and c. determine the information which is at least one of at least one geometrical characteristic or at least one intensity characteristic of the at least one portion based on the volumetric data.