1. An apparatus for reducing X-ray scatter, the apparatus comprising: a motor; and an anti-scatter grid coupled to the motor, the anti-scatter grid having a plurality of septa, and the anti-scatter grid being configured to be positioned relative to an X-ray imaging device such that each septum of the plurality of septa extends along a direction substantially parallel to a coronal plane of a subject during imaging of the subject using the X-ray imaging device, wherein the motor is configured to retract the anti-scatter grid out of the field of view in a first mode of the X-ray imaging device and the motor is configured to move the anti-scatter grid relative to a detector in the field of view in a second mode of the X-ray imaging device.