Procedures Skull Positioning Review Flashcards Preview

Rad Procedures and Anatomy > Procedures Skull Positioning Review > Flashcards

Flashcards in Procedures Skull Positioning Review Deck (43):
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

30

Caldwell Sinus
Baseline

OML ⊥ IR

31

Lateral Sinuses
Baseline

MSP // IR
IPL ⊥ IR
IOML ⊥ Front edge of IR

32

SMV Sinuses
Baseline

IOML // to IR

33

Alternate name for Waters projection

parietoacanthial

34

Alternate name for AP Towne projection

Grashey

35

MSP

Separates the skull into right and left halves

36

Coronal

Separates skull into anterior and posterior portions

37

Transverse

Separates the skull into inferior and superior portions

38

Tilt

Lateral bending at neck with vertex lt or rt

39

PA Skull
PP

OML ⊥ IR
Patient seated true PA

40

Lateral Skull
PP
5

Head true lateral
IOML ⊥ Edge of IR
Body semi prone
MSP // IR
IPL ⊥ IR

41

Open Mouth Waters Sinuses
PP
3

Pt upright true PA
MML ⊥ to IR then have pt drop jaw

42

AP Towne
PP
2

Pt seated True AP
OML ⊥ IR