Apparatus for the, in particular, transperineal examination of patients, consisting of two leg holders (1) arranged symmetrically in relation to the longitudinal axis of the patient, wherein the leg holders (1) have arranged between them a carriage (2) which runs parallel to the center plane of the patient and can be displaced, and arrested, in the direction of the longitudinal axis and, at its patient end, has a frame (3) which is oriented perpendicularly to the displacement direction and is suitable for accommodating a grid (4) and/or a targeting device or an NMR coil.