Projections and Positions Flashcards
The term defined as the path of central ray as it exits the x-ray tube and goes through the patient to the IR is called a what?
Projection
During this projection a perpendicular central ray enters the anterior body surface and exits the posterior body surface is known as what projection?
Anteroposterior-AP
During this projection a perpendicular central ray enters the posterior body and exiting the anterior body surface.
Posteroanterior-PA
During this projection, there is longitudinal angulation of the central ray with the long axis of the body or a specific body part.
Axial projection
This term refers to all projections in which the longitudinal angulation between the central ray and the long axis of the body part is 10 degrees or more.
Axial
Occasionally the central ray is directed toward the outer margin of a curved body surface to profile a body part just under the surface and project it free of superimposition during this projection.
Tangential
During this projection, a perpendicular central ray enters one side of the body or body part, passes transversely along the coronal plane and exits on the opposite side.
Lateral projection
During this projection, the central ray enters the body or body part from a side angle following an oblique plane.
Oblique projection
If the central ray enters the anterior surface and exits the opposite posterior surface, it is known as what projection?
AP oblique projection
If it enters the posterior surface and exits anteriorly, it is known as what projection?
PA oblique projection
The overall posture of the patient or the general body position is termed as what?
Position
Erect or marked by a vertical position.
Upright
Upright position in which the patient is sitting or stool.
Seated
Lying on the back
Supine
Lying face down
Prone
Supine position with the head tilted downward
Tredelenburg’s position
Supine position with the head higher thant the feet.
Fowler’s position
General term referring to lying down in any position.
Recumbent
A recumbent position with the patient lying on the left anterior side (semiprone) with the left leg extended and the right knee and thigh partially flexed.
Sim’s position
A supine position with the knees and hip flexed and thighs abducted and rotated externally, supported by ankle supports.
Lithotomy position
This position refers to the side of the patient that is placed closest to the IR.
Lateral position
This position is achieved when the entire body or body part is rotated so that the coronal plane is not parallel with the radiographic table or IR.
Oblique position
Term used to indicate that the patient is lying down and that the central ray is horizontal and parallel with the floor
Decubitus position
This position is achieved by having the patient lean backward while in the upright body position so that the shoulders are in contact with the IR.
Lordotic position
This term is used to describe the body part as seen by the IR.
View
This term describes the specific radiographic projection that the individual developed.
Method
