Terms & Positions - 166 Flashcards
X-ray Film
film before it’s processed and developed
Radiograph
film or digitally processed image AFTER it is exposed to x-rays
Image Receptor (IR)
the device that captures the radiographic image that exits the patient
Central Ray (CR)
theoretical x-ray beam for alignment of the angle and proper centering of the x-ray beams
Digital Radiography (DR)
direct conversion of transmitted x-ray photons into a digital image
Image (Picture)
display of anatomic structures on any media (CR or DR)
Position
The position of the patients body, how it is laying or standing
Projection
Positioning term that refers to the path of the central ray as it passes through the patient to the image receptor
Medial
Close to the midline of the body
Lateral
Away from the mid-line of the body
Coronal
Divides the body into anterior and posterior
Sagittal
Divides into left and right
Ventral
Front or Belly
Dorsal
Back of Patient, think dorsal fin
Plantar
Bottom of the Foot
Palmar
Referring to the palm of hand
Supine
patient is laying on their back
Prone
patient is laying on their stomach
erect
any version of standing
Recumbent
laying down in any form
Lateral
laying on right or left side or standing with side facing the x-ray tube
Fowler
feet lower than head
Trendelenburg
head lower than feet
Decubitus
means to lie on your side, the x-ray tube will be horizontal to the patient
Proximal
Further from a certain point
Distal
Near a certain point
Ipsolateral
Body parts on the same side
Contralateral
Body parts on the opposite sides
Cephalic
head; towards the head
Caudal
tail; away from head
Posteroanterior (PA)
The beam enters posterior and exits anterior
Anteroposterior (AP)
The beam hits anterior and exits posterior
APO
Hits anteriorly, body is slightly rotated 45 degrees
PA Oblique
hits posteriorly, body is slightly rotated 45 degrees
Leteral Medial
The body part is rotated, therefore the beam hits the lateral aspect and proceeds medially
Medial Lateral
at a 90 degree angle, CR hits medially before proceeding laterally
Axial
the long axis of a structure of part
AP Axial
The angle of CR is more than 10 degrees and is entering anteriorly
Inferior Superior Axial
Example: CR hits the armpit then exits out the shoulder
Flexion
decreases the angle of the joint
Extension
increase angle of the joint; body part moves to a straightened position
Dorsiflexion
decreases the angle between the bottom of the foot and moves foot downwards from normal position
Eversion
Outward stress movement of the ankle joint
Inversion
Inward Stress on the Ankle Joint
Medial Rotation
Turning the body part towards the median plane
Lateral Rotation
An anterior body part turning away from you
Abduction
Movement of arm or leg away from the body
Aduction
movement of arm or leg towards the body
Supination
rotational movement of the hand into anatomical position (palm up)
Pronation
rotates the hand opposite of anatomical position
Minimum of ____ projections (90 degrees) from one another
Two
Minimum of _____ projections when joints are the primary area of interest
3
What are the 3 projections when joints are the area of interest
AP or PA
Lateral
Oblique