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