Apparatus and method can be provided for obtaining information regarding at least one portion of an anatomical structure. For example, using at least one first arrangement, it is possible to forward at least one first electromagnetic radiation to the at least one portion. In addition, using at least one second arrangement, it is possible to detect at least one second electromagnetic radiation from the sample, the second electromagnetic radiation being related to the first electromagnetic radiation. The second arrangement can be used to obtain data associated with the second electromagnetic radiation at a plurality of integration times. Further, with at least one third arrangement, it is possible to determine at least one motion characteristic as a function of depth within the portion using the second electromagnetic radiation. The motion characteristic can be determined by obtaining data associated with the second electromagnetic radiation. The data can be speckle data detected by the second arrangement. In addition, using the third arrangement, it is possible to determine optical properties of the portion based on the data. Furthermore, with a fourth arrangement, it is possible to receive the first electromagnetic radiation and generate a plurality of third electromagnetic radiations to irradiate multiple points on the portion. The second arrangement can be used to detect the second electromagnetic radiation from the sample based on the third electromagnetic radiations, and the third arrangement can also be used to determine a plurality of motion characteristics as a function of depth for a plurality of location of the at least one portion as a function of the second electromagnetic radiation.Linvention concerne un appareil et un procédé permettant dobtenir des informations relatives à une partie au moins dune structure anatomique. Par exemple, lutilisation dau moins un premier arrangement permet denvoyer au moins un premier rayonnement électromagnétique sur ladite
