A radiographic imaging apparatus comprising an articulated arm to suspend an X-ray head from a support section of the radiographic imaging apparatus, wherein the support section is configured to be supported on a planar floor surface, and the articulated arm comprises: a proximal arm section comprising a first proximal linkage and a second proximal linkage, a proximal end of each of which is connected or connectable to the support section such that the first and second proximal linkages (411, 412) are pivotable relative to the support section, about respective axes which are parallel to the floor surface when the support section is supported on the floor surface; an intermediate linkage to which a distal end of each of the first and second proximal linkages (411, 412) is connected such that the intermediate linkage is pivotable relative to the first and second elongate linkages, about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable; a distal arm section comprising a first distal linkage and a second distal linkage a proximal end of each linkage is connected to the intermediate linkage such that the first and second distal linkages (461, 462) are pivotable relative to the intermediate linkage, about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable, a distal end of each of the distal linkages (461, 462) being connected or connectable to the X-ray head, via a mounting, such that the mounting is pivotable, relative to the first and second distal linkages (461, 462), about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable, characterised in that a rotational orientation of the mounting about an axis which is parallel to the axes about which the proximal linkages (411, 412) are pivotable is adapted to remain constant when the proximal arm section is pivoted or rotated relative to the support section and/or the distal arm section is pivoted or rotated relative to the intermediate linkage in the apparatus; and the mounting is configured to permit rotation of the head relative to the distal ends of the distal linkages (461, 262) about an axis which is perpendicular to the axes about which the proximal linkages (411, 412) are pivotable and parallel to the floor surface when the support section is supported on the floor surface. a proximal arm section comprising a first proximal linkage and a second proximal linkage, a proximal end of each of which is connected or connectable to the support section such that the first and second proximal linkages (411, 412) are pivotable relative to the support section, about respective axes which are parallel to the floor surface when the support section is supported on the floor surface; an intermediate linkage to which a distal end of each of the first and second proximal linkages (411, 412) is connected such that the intermediate linkage is pivotable relative to the first and second elongate linkages, about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable; a distal arm section comprising a first distal linkage and a second distal linkage a proximal end of each linkage is connected to the intermediate linkage such that the first and second distal linkages (461, 462) are pivotable relative to the intermediate linkage, about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable, a distal end of each of the distal linkages (461, 462) being connected or connectable to the X-ray head, via a mounting, such that the mounting is pivotable, relative to the first and second distal linkages (461, 462), about respective axes which are parallel to the axes about which the proximal linkages (411, 412) are pivotable, characterised in that a rotational orientation of the mounting about an axis which is parallel to the axes about which the proximal linkages (411, 412) are pivotable is adapted to remain constant when the proximal arm section is pivoted or rotated relative to the support section and/or the distal arm section is pivoted or rotated relative to the intermediate linkage in the apparatus; and the mounting is configured to permit rotation of the head relative to the distal ends of the distal linkages (461, 262) about an axis which is perpendicular to the axes about which the proximal linkages (411, 412) are pivotable and parallel to the floor surface when the support section is supported on the floor surface.