Procedures Skull Positioning Review Flashcards Preview

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Flashcards in Procedures Skull Positioning Review Deck (43)
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1

Skull Routine

PA Skull
AP Towne
RT/LT Laterals

2

Sinuses Routine

Caldwell
Open Mouth Waters
Lateral of affected side
Submentalvertical

3

PA Skull
CR

⊥ nasion

4

AP Towne
CR

<30° Caudal to pass through sella tursica

5

AP Towne
CR on not flexible pt

<37° Caudal to pass through sella tursica

6

Lateral Skull
CR

⊥ 2" Above EAM

7

XTable Lateral Skull
CR

⊥ 2" Superior to EAM

8

Caldwell Sinus
CR

<15° Caudal to nasion

9

Open Mouth Waters Sinus

⊥ open mouth

10

Lateral of affected side

⊥ to 1/2 way between outer canthus and EAM

11

SMV Sinus

⊥ to IOML entering midway between gonions to pass through sella tursica

12

PA Skull
SS

Frontal bone

13

AP Towne
SS
4

Occipital bone

14

Laterals Skull
SS
6

(Side closest to IR)
Parietal and temporal

15

Xtalbe Lateral
SS
2

Detail of side closest to IR
Demonstrates possible A/F levels in sphenoid sinus which may indicate basilar skull fx

16

Caldwell
SS
1

Best demonstrates frontal and ethmoid sinuses

17

Open Mouth Waters Sinuses
SS
2

Maxillary sinuses
Sphenoid sinuses
Seen through open mouth

18

Lateral affected side Sinuses
SS
2

Lateral projection of all 4 sides
Sella tursica

19

SMV Sinuses
SS
1

Sphenoid sinus anterior to foramen magnum

20

PA Skull
Eval Criteria
3

Petrous ridges 2/3 to filling orbits
AP, Orbits will be magnified
No tilt or rotation

21

AP Towne
Eval Criteria
2

Dorsum sellae and posterior clinoids within foramen magnum
No tilt or rotation

21

Caldwell Sinuses
Eval Criteria
2

No tilt or rotation
Petrous ridges in lower 1/3 of orbits

22

Open Mouth Waters
Eval Criteria
3

Mouth open
No tilt or rotation
Petrous ridges just below maxillary sinuses

23

Lateral Sinuses
Eval Criteria
3

Sella tursica
Mandible
Frontal bone

24

SMV
Eval Criteria
2

Mandilbe S/I on frontal bone
No tilt or rotation

25

3 structures used to identify tilt rotation

Sella tursica
Anterior clinoid process
Mandibular shadows

26

PA Skull
Baseline

OML ⊥ IR

27

AP Towne
Baseline

OML ⊥ IR

28

Lateral Skull
Baseline
3

IPL ⊥ IR
IOML ⊥ to front edge of IR

29

Open Mouth Waters Sinus
Baseline

MML ⊥ IR