Acronym that stands for "anterior-superior iliac spine;"
palpation point on the ilium of the pelvis.
Any angle of the central ray along the long axis of a structure
or part, around which a rotating body turns or is arranged. EX:
For a tangential (axial) projection of the knee (Settegast
method), the angle of the CR is along the long axis of the
A position in which the part being radiographed is in a lateral
position with respect to the film and the CR is being directed at
an angle to the long axis of the body.
Both lateral; e.g., for a bilateral skull both sides of the skull are
radiographed for comparison purposes.
Sliding tray-like device found just below the X-ray table that
reduces secondary (scatter) radiation that could reach the
Use or radiolucent material i.e., sponges, for support of
Refers to parts away from the head of the body.
Refers to parts of the body towards the head.