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55 terms

Radiology Terms and Abbreviations

Radiology Terms and Abbreviations
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Radiographic View
Describes the body part as seen by the x ray film or other recording medium, such as a fluoroscopic screen. (Radiograph or image)
Radiograph Position
Refers to a specific body position, such as supine (face up), prone (face down), erect (on side), or recumbent.
Radiographic Projection
The path of the central ray
Supine
lying on one's back
Prone
lying face downward
Decubitus
lying on a lateral side with tube in horizontal position.
Recumbent
lie back
Anterior position
facing the film/image receptor
Posterior position
facing the x ray tube
Oblique (Obl) position
angled towards the film/image receptor
RAO View
right anterior oblique (right angled to film)
LPO View
left posterior oblique (left angled to film)
AP Projection
antero-posterior, where central ray enters the anterior side and exits the posterior side
PA Projection
postero-anterior, where central ray enters the posterior side and exits the anterior side.
Medial
part of a structure lying nearest midline
Lateral
part of a structure lying farthest away from midline
Cephalad
towards the head (central ray angled towards the head)
Caudad
towards the tail end (central ray angled towards the feet)
Palmar
front or palm of the hand
Plantar
sole of the foot
Proximal
part of the structure closest to the origin
Distal
part farthest away from the origin
Lateral
single side view of the body
Bilateral
both sides of the body
Internal
turning inward
External
turning outward
Respiration
act of breathing
Inspiration
holding one's breath (e.g., Chest)
Expiraton
exhaling (e.g., Abdomen)
X-ray beam
x rays leaving the tube, forming a cone shaped beam
Field of view
area where the x ray beam is directed for imaging
Central ray (CR)
imaginary line in the center of x ray beam, perpendicular to the object being imaged.
kVp
kilovoltage, peak (maximum amount of energy)
mAs
milliamperage x's seconds (time)
Imaged
synonymous with term x rayed
Radiographs
x ray image
Exposure
act of taking a radiograph (taking an x-ray)
Cassette
holder for radiographic film and screens
Bucky
metal tray holding cassettes, mounted under the tabletop
Upright Chest Board
Bucky in an upright position, used mainly for chest x rays
Tabletop (TT)
defines a location where to place cassettes
Midline
center line drawn on tabletop or on upright chest board
SID
source to image receptor distance
OID
object to image receptor distance
AOI
area of interest (target, field of view)
Lead markers
markers made of lead and placed on outside of cassettes to indicate positioning (Rt./Lt.), times, and tech initials
I.D. blocker
area on the cassette reserved for patient information
Centimeter stick/Caliper
aluminum, L shaped measuring stick in centimeters
Technique
factors used for the exposure: mA, time, kVp, distance, and focal spot size
Technique chart
chart that contains exposure factors according to body part (chest), part thickness (cm), and technical factors
Focal spot (FS)
selection on control panel to decide on x ray beam's size
Artifacts
unwanted marks on a radiograph
Standard distances
40 inches (102 cm) or 72 inches (183 cm)
Effective dose limits (E)
replaces the term "maximum permissible dose"
LW or CW
symbols for cassette placement, length wise or cross wise