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Rad Procedures and Anatomy > Procedures Skull Positioning > Flashcards

Procedures Skull Positioning Flashcards

1
Q

For any headwork you should always

A

FB and clean IR

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2
Q

Skull Routine

A

PA
AP TOWNE
Laterals (Rt and Lt)

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3
Q

PA Skull
IR
SID

A

10x12 LW

40in

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3
Q

PA Skull

CR

A

Perp to nasion

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4
Q

PA Skull
PP
(3)

A

Pt seated true AP
OML perpendicular to IR
Head resting on forehead and nose

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6
Q

PA Skull
SS
(4)

A

Anterior and side walls of cranium
Crista galli
IAC
Lateral borders of orbits

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7
Q

Eval criteria
PA Skull
(3)

A

Petrous ridges 2/3 - filling orbits
no tilt or rotation
AP orbits will be magnified

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8
Q

Other name for AP Towne

A

Grashey

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9
Q

AP Towne
IR
SID

A

10x12 LW

40”

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10
Q

AP Towne

CR

A

Angle 30 degrees caudal to pass through sella tursica

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10
Q

How to find sella tursica

A

.75 in up anterior and superior from EAM

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11
Q

AP Towne
PP
(2)

A

Seated
True AP
OML perp to IR

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12
Q

AP Towne
SS
(4)

A

Primarily demonstrates occipital bone
Posterior clinoid processes
Dorsum sellae
Coronal and Lambdoidal sutures

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13
Q

Eval Criteria
AP Towne
(3)

A

Dorsum sellae and posterior clinoids within foramen magnum

No tilt or rotation

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14
Q

Laterals Lt and Rt
IR
SID

A

10x12 CW

40”

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15
Q

Laterals
PP
(5)

A 
Body is semi-prone
head true lateral 
MSP // IR
IPL Perp to IR
IOML Perp to front edge of IR
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16
Q

Laterals
SS
(6)

A 
Lateral projection of entire cranium
Detail of side adjacent to IR
Sella turisca
Anterior clinoids
Posterior clinoids
Dorsum sellae
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17
Q

Laterals
Eval Criteria
Tilt
(5)

A 
Mandibular shadows
orbital plates
sella tursica
anterior clinoid 
base of skull
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18
Q

Laterals
Eval Criteria
Rotation
(5)

A 
Mandibular shadows
squama portion of frontals
squama portion of occipital
anterior and posterior clinoid processes
sella tursica
19
Q

Non Routine
XTable Lateral Skull
IR
SID

A

10x12 CW to pt with slip on grid

40”

20
Q

XTable Lateral Skull

CR

A

Perpendicular to 2” SUPERIOR to EAM

21
Q

XTable Lateral Skull
PP
(3)

A

Supine
No rotation of head
Elevate head on sponge

22
Q

Xtable Lateral Skull
SS
(2)

A

Detail of side adjacent to IR

Demonstrates possible A/F level in sphenoid sinus which may indicate basilar skull fracture

23
Q

Xtable Lateral Skull

Eval criteria

A

Same as lateral

24
Q

Sinuses Routine

A

Caldwell
Open mouth waters
Lateral of affected side
SMV

ALL MUST HAVE EVIDENCE OF COLLIMATION ON ALL FOUR SIDES

25
Q

Other name for Caldwell

A

AP Axial

26
Q

Caldwell
IR
SID

A

8X10 LW

40”

27
Q

Caldwell

CR

A

angle 15° caudal to nasion

28
Q

Caldwell
PP
(3)

A

Seated true PA
OML perp to IR
Head resting on forehead and nose

29
Q

Caldwell

Eval Criteria

A

Petrous ridges in lower 1/3 of orbits

No tilt or rotation

30
Q

Open Mouth Waters other name

A

Paritoacanthial

31
Q

Open Mouth Waters
IR
SID

A

8X10 LW

40in

32
Q

Open Mouth Waters

CR

A

Perpendicular to open mouth

33
Q

Open Mouth Waters
PP
(3)

A

Pt seated true PA
MML Perpendicular to IR
Then have pt open mouth by dropping jaw

34
Q

Open Mouth Waters
(SS)
(3)

A

Maxillary sinuses
Sphenoid sinus seen through open mouth
bony nasal septum also demoed

35
Q

Open Mouth Waters
Eval Criteria
(3)

A

Petrous ridges just below maxillary sinuses
no tilt or rotation
mouth open

36
Q

Lateral-Affected side
IR
SID

A

8X10 LW

40 IN

37
Q

Lateral-Affected side

CR

A

Perp to 1/2 way between outer canthus and EAM

38
Q

Lateral-Affected side
PP
(6)

A 
Semi Prone
seated
MSP // IR
IPL Perp IR
IOML Perp front edge of IR
Head true lateral
39
Q

Lateral-Affected side
SS
(2)

A

Lateral Projection

Sella tursica

40
Q

Lateral-Affected side

Evaluation Criteria

A

tilt and rotation: sella tursica
mandible
orbital plates for tilt

41
Q

SMV
IR
SID

A

8X10 LW

40in

42
Q

SMV

CR

A

Perp to IOML entering midway between goinions to pass through sella tursica

43
Q

SMV
PP
(3)

A

Seated start AP
Tip back until vertex is resting on IR
IOML // to IR no tilt or rotation

44
Q

SMV
SS
(1)

A

Sphenoid sinus anterior to foramen magnum

45
Q

SMV

Eval Criteria

A

Mandible S/I on frontal bone
Mandibular condyles anterior to petrous pyramids
No tilt or roation

Rad Procedures and Anatomy (24 decks)

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