Acronym for submentovertex.
Projection in which the CR enters beneath the mandible
and exits the vertex of the skull to the center of the film.
source to image
Distance in inches between the X-ray tube focal spot and
receptor distance (SID)
the film. Also referred to as the anode-film distance and the
focal spot-film distance
An incomplete or partial dislocation.
The ridge or arch of the bone extending across the
forehead directly above each eye
Lying on back; as in the AP supine abdomen.
The patient is instructed to take a deep breath and blow it
all the way out and stop breathing; as in the thoracic spine
The patient is instructed to take a deep breath and hold it.
The patient is instructed to stop breathing.
The central ray (CR) and source to image receptor
A projection in which the CR merely skims the body part to
project it away from the other body parts.
projection anterior to the
external opening of the