The radiological apparatus comprises a base (101), a table (110) with a patient plane (111) and a movement system of said table; the movement system comprises: a first rod (102) hinged at a first end to a first point of said base (101), a second rod (103) hinged at a first end to a second point of said base, said second point being at a predetermined and fixed distance from said first point, a first motorized carriage (104) adapted to slide along a first rail of said table, a second motorized carriage (105) adapted to slide along a second rail of said table, said second rail being distinct from or coinciding with said first rail; a second end of said first rod (102) is hinged to said first carriage (104); a second end of said second rod (103) is hinged to said second carriage (105); the radiological apparatus further comprises means (106) adapted to constrain the rotation of said first rod (102) and/or of said second rod (103).