2003 r103 unit iii positioning terms

8/6/2019 2003 R103 Unit III Positioning Terms

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Unit IIIUnit III 22

Anatomic positionAnatomic position Erect, face forward,Erect, face forward,

feet together, arms atfeet together, arms atsides with palmssides with palms

forwardforward

Anatomic TerminologyAnatomic Terminology


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Unit IIIUnit III 33

PlanePlane Flat surface passedFlat surface passed

through the body or athrough the body or aportion of the bodyportion of the body

Longitudinal planesLongitudinal planes CoronalCoronal SagittalSagittal

Horizontal planeHorizontal plane TransverseTransverse

c o r o n a

l

c o r o n a

l

m i d

- s a g

i t t a l

m i d

- s a g

i t t a l

t r a n s v e r s e

t r a n s v e r s e

Anatomic TerminologyAnatomic Terminology


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Unit IIIUnit III 44

Directional TermsDirectional Termsanterior posterior lateral

a n

t e r

i o r

p o s

t e r

i o r

cephaladcephalicsuperior cranial

inferior

caudalcaudad

medial

lateral proximal

distal


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Unit IIIUnit III 55

Joint Movement TermsJoint Movement TermsABDUCT vs. ADDUCTABDUCT vs. ADDUCT


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Unit IIIUnit III 66

Joint Movement TermsJoint Movement Terms

FLEXION vs. EXTENSIONFLEXION vs. EXTENSION

flexion

extension

hyperextend

flexion

dorsiflexion

plantar flexion neutral

extend


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Unit IIIUnit III 77


INVERSION vs. EVERSIONINVERSION vs. EVERSION

turn inward or medially turn outward or laterally


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Unit IIIUnit III 88


PRONATION vs. SUPINATIONPRONATION vs. SUPINATION

place on

back

place on

front


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Unit IIIUnit III 99


ROTATION vs. CIRCUMDUCTIONROTATION vs. CIRCUMDUCTION

pivot

circle


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Unit IIIUnit III 1010

Body Position TermsBody Position Terms

Describe the overallDescribe the overallplacement of the bodyplacement of the body ErectErect "upright""upright"

Position when thePosition when thesagittal and coronalsagittal and coronalplanes of the body areplanes of the body are

perpendicular to theperpendicular to thehorizonhorizon RecumbentRecumbent "lying"lying

down"down"Position when thePosition when thetransverse plane of thetransverse plane of thebody is perpendicular tobody is perpendicular tothe horizonthe horizon


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Body Position TermsBody Position Terms

decubitus vs. recumbentdecubitus vs. recumbent general meanings are thegeneral meanings are the

same "LYING DOWN"same "LYING DOWN"

but in radiography,but in radiography,decubitus has a specialdecubitus has a specialmeaningmeaning

DECUBITUSDECUBITUS patient is lying down & patient is lying down & the x-ray beam isthe x-ray beam is

parallel to the horizonparallel to the horizon


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Erect PositionsErect Positions

Surface of body closestSurface of body closestto the film used to giveto the film used to givea more specifica more specificdescriptiondescriptionExamples:Examples: Posterior erect -- patientPosterior erect -- patient

is standing with theis standing with theposterior surface of theposterior surface of thebody next to the cassettebody next to the cassette

Left lateral erect --Left lateral erect --patient is standing withpatient is standing withthe left side of the bodythe left side of the bodynext to the cassettenext to the cassette

Left lateralerect position


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Recumbent PositionsRecumbent Positions

SupineSupine(posterior recumbent(posterior recumbent

position)position) Lying down on the backLying down on the back

ProneProne(anterior recumbent(anterior recumbent

position)position) Lying face downLying face down

xx lateral recumbentxx lateral recumbent lying down on the xx sidelying down on the xx side


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ObliqueOblique (Erect or Recumbent)(Erect or Recumbent)

Position when the body isPosition when the body isrotated so that the MS planerotated so that the MS planeis neitheris neither nornor to theto thefilm but at an anglefilm but at an angleExact position is indicated byExact position is indicated by

the surface closest to thethe surface closest to thefilm and the angle of rotationfilm and the angle of rotationMay be erect or recumbentMay be erect or recumbentabbreviations:abbreviations: RPO, LPO, RAO, LAORPO, LPO, RAO, LAO 45 RPO


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Decubitus PositionsDecubitus Positions

Ventral decubitusVentral decubitus patient is prone & a horizontalpatient is prone & a horizontal

beam is usedbeam is used

Dorsal decubitusDorsal decubitus

patient is supine & a horizontalpatient is supine & a horizontalbeam is usedbeam is used

Left lateral decubitusLeft lateral decubitus patient lying on the left lateralpatient lying on the left lateral

side & a horizontal beam isside & a horizontal beam isusedused


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PROJECTIONPROJECTIONRefers to the path theRefers to the path thebeam takes through partbeam takes through partAnteroposterior projectionAnteroposterior projection

(AP)(AP)Beam enters the front surfaceBeam enters the front surfaceand exits the back surface of and exits the back surface of

the partthe part

Posteroanterior projectionPosteroanterior projection(PA)(PA)

Beam enters the back andBeam enters the back andexits the front of the partexits the front of the part

AP projection in supine position

PA projection in prone position


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Lateral ProjectionsLateral Projections

Normally the positioningNormally the positioningterminology is used ratherterminology is used ratherthan projectionthan projection torso and headtorso and head

Right to left lateral projectionRight to left lateral projectionLeft to right lateral projectionLeft to right lateral projection

extremitiesextremitiesMediolateral projectionMediolateral projectionLateromedial projectionLateromedial projection L lateral erect position

R to L lateral projection


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Oblique ProjectionsOblique Projections

Normally the positioningNormally the positioningterminology is usedterminology is used exampleexample

RPO position = rightRPO position = right

anterior to right posterioranterior to right posteriorprojection (oblique AP)projection (oblique AP)


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Special Projections (Position)Special Projections (Position)

AxialAxial projection that includes anprojection that includes anangulation of the beamangulation of the beamusually to the long axis of usually to the long axis of the body partthe body part

AP axialwith 40

caudal angle

TangentialTangential projection obtained when

the CR touches only alongthe edge of a curved bodypart

2003 r103 unit iii positioning terms

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