An apparatus for imaging the inner part of a body, particularly for diagnostic imaging thereof, including at least means for imaging and displaying images according to at least one type of beams, waves or signals transmitted toward a body or a part thereof to be examined, the said means being means for generating at least one type of waves or beams which are transmitted toward the body or the part thereof to be internally imaged and means for receiving said type of waves or beams transmitted by the body under examination or by the part thereof or deriving from the excitation of said part or body under examination, from the reflection and/or transmission and/or modification of waves, of the beams transmitted against said body under examination or the part thereof.