Image ID Skull, Orbits & Sinuses

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Last updated 12:20 AM on 6/17/26
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108 Terms

1
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PA Axial Caldwell

What projection is this?

<p>What projection is this?</p>
2
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Frontal Bone

What is 1?

<p>What is 1?</p>
3
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crista galli of ethmoid bone

What is 2?

<p>What is 2?</p>
4
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Petrous Ridges of Temporal bone

What is 3?

<p>What is 3?</p>
5
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Bregma

What is 5?

<p>What is 5?</p>
6
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Coronal Suture

What is 6?

<p>What is 6?</p>
7
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Greater Wing of Sphenoid

What is 7?

<p>What is 7?</p>
8
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Lesser Wing of Sphenoid

What is 8?

<p>What is 8?</p>
9
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Orbital Plates of Frontal Bone

What is 9?

<p>What is 9?</p>
10
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Posterior clinoid process of sphenoid bone

What is 10?

<p>What is 10?</p>
11
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Dorsum sellae of sphenoid bone

What is 11?

<p>What is 11?</p>
12
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Clivus of occipital bone

What is 12?

<p>What is 12?</p>
13
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External auditory meatus EAM

What is 13?

<p>What is 13?</p>
14
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OML (Orbitomeatal Line)

Identify the topographic line:

What is A?

<p>Identify the topographic line:</p><p>What is A?</p>
15
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IOML (Infraorbitomeatal line)

Identify the topographic line:

What is B?

<p>Identify the topographic line:</p><p>What is B?</p>
16
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AML (acanthiomeatal line)

Identify the topographic line:

What is C?

<p>Identify the topographic line:</p><p>What is C?</p>
17
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MML (mentomeatal line)

Identify the topographic line:

What is D?

<p>Identify the topographic line:</p><p>What is D?</p>
18
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Glabella

Identify the topographic landmarks:

What is 18?

<p>Identify the topographic landmarks:</p><p>What is 18?</p>
19
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IPL (interpupillary line)

Identify the topographic landmarks:

What is 19?

<p>Identify the topographic landmarks:</p><p>What is 19?</p>
20
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Nasion

Identify the topographic landmarks:

What is 20?

<p>Identify the topographic landmarks:</p><p>What is 20?</p>
21
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Acanthion

Identify the topographic landmarks:

What is 21?

<p>Identify the topographic landmarks:</p><p>What is 21?</p>
22
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Outer Canthus

Identify the topographic landmarks:

What is 22?

<p>Identify the topographic landmarks:</p><p>What is 22?</p>
23
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Infraorbital margine (IOM)

Identify the topographic landmarks:

What is 23?

<p>Identify the topographic landmarks:</p><p>What is 23?</p>
24
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AP Axial Townes method

What projection is this?

<p>What projection is this?</p>
25
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petrous ridge of temporal bone

What is 25?

<p>What is 25?</p>
26
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Lambda

What is 26?

<p>What is 26?</p>
27
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Lambdoidal Suture

What is 27?

<p>What is 27?</p>
28
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foramen magnum of occipital bone

What is 28?

<p>What is 28?</p>
29
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posterior clinoid processes of sphenoid bone

What is 29?

<p>What is 29?</p>
30
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dorsum sellae of sphenoid bone

What is 30?

<p>What is 30?</p>
31
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Lateral Skull

What projection is this?

<p>What projection is this?</p>
32
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- Sella turcica should not be rotated, but should be seen in profile

-Superimposition of: orbital roofs, greater wings of sphenoid, mastoid regions, EAMS and the tempromandibular joints should be superimposed too.

What is the exam evaluation criteria?

<p>What is the exam evaluation criteria?</p>
33
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Superimposed orbital roof

What is 33?

<p>What is 33?</p>
34
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sella turcica of sphenoid bone

What is 34?

<p>What is 34?</p>
35
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petrous portion of temporal bone

What is 35?

<p>What is 35?</p>
36
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external acoustic meatus

What is 36?

<p>What is 36?</p>
37
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dorsum sellae of sphenoid bone

What is 37?

<p>What is 37?</p>
38
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Superior orbital margin

What is 38?

<p>What is 38?</p>
39
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petrous ridge of temporal bone

What is 39?

<p>What is 39?</p>
40
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infraorbital margin

What is 40?

<p>What is 40?</p>
41
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crista galli of ethmoid bone

What is 41?

<p>What is 41?</p>
42
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Modified Waters

What projection is this?

<p>What projection is this?</p>
43
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Petrous Ridges

What is 47?

<p>What is 47?</p>
44
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PA Axial Caldwell Skull

What projection is this?

<p>What projection is this?</p>
45
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- The petrous bones should lie in the lower third of the orbits

- The distance between the lateral border of the skull to the lateral border of the orbit should be equal on both sides

What is the evaluation criteria for this image?

<p>What is the evaluation criteria for this image?</p>
46
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AP Axial Townes Method

What is this projection?

<p>What is this projection?</p>
47
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- the dorm sella and the posterior crinoid processes should be visualized within the magnum foramen

- the distance from the lateral border of the skull to the lateral margin of the foramen magnum should be equal on both sides

What is the evaluation criteria for this image?

<p>What is the evaluation criteria for this image?</p>
48
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AP Axial Towne Method

- OML 30 degrees caudal

-IOML 37 degrees caudal

Which projection uses these angulations?

<p>Which projection uses these angulations?</p>
49
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Superior orbital margin

What is 31?

<p>What is 31?</p>
50
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Lateral orbital margin

What is 32?

<p>What is 32?</p>
51
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Inferior orbital margin

What is 33?

<p>What is 33?</p>
52
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image A

the petrous ridges are projected below maxillary sinuses for the modified waters

Which image is the modified waters?

<p>Which image is the modified waters?</p>
53
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Waters: demonstrates maxillary sinuses.

What is this sinus projection?

<p>What is this sinus projection?</p>
54
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Maxillary Sinus

What is A?

<p>What is A?</p>
55
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Frontal Sinus

What is B?

<p>What is B?</p>
56
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perpendicular plate of ethmoid bone

What is C?

<p>What is C?</p>
57
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petrous ridge of temporal bone

What is D?

<p>What is D?</p>
58
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Waters projection- sinus

What projection is this?

<p>What projection is this?</p>
59
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Maxillary Sinus

A is which sinus?

<p>A is which sinus?</p>
60
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Ethmodial sinus

B is which sinus?

<p>B is which sinus?</p>
61
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Frontal sinuses

C is which sinus?

<p>C is which sinus?</p>
62
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Sphenoidal sinuses

D is which sinus?

<p>D is which sinus?</p>
63
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B, air/fluid levels are best demonstrated with horizontal x-ray beam

To demonstrate sphenoid and ethmoid sinuses, which is the preferred method, A or B? Why?

<p>To demonstrate sphenoid and ethmoid sinuses, which is the preferred method, A or B? Why?</p>
64
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SMV sinuses

Which sinus projection is this?

<p>Which sinus projection is this?</p>
65
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ethmoid sinuses

Which sinus is 14 pointing at?

<p>Which sinus is 14 pointing at?</p>
66
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Sphenoid sinuses

Which sinus is 15 pointing at?

<p>Which sinus is 15 pointing at?</p>
67
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Frontal sinuses

What does the red line indicate?

<p>What does the red line indicate?</p>
68
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Petrous ridges

What does the blue lines indicate?

<p>What does the blue lines indicate?</p>
69
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ethmoidal sinuses

What does the yellow lines indicate?

<p>What does the yellow lines indicate?</p>
70
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PA Axial Caldwell

What projection is this?

<p>What projection is this?</p>
71
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Open Mouth Waters Sinuses

What projection is this?

<p>What projection is this?</p>
72
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Sphenoid sinuses through the open mouth

What is the important anatomy shown?

<p>What is the important anatomy shown?</p>
73
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Lateral

Which projection of the sinuses demonstrates all of the sinuses?

74
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PA Axial Caldwell

Which projection(s) of the sinuses demonstrates the frontal and ethmoid sinuses?

75
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MML and OML

Which topographical line is used to perform the waters for sinus?

76
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15 degrees

How much angle is used for a Caldwell Sinus?

77
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.5-1" posterior to the outer canthus

What is the CR location for a lateral sinus?

78
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Acanthion

What is the CR exit for a Waters Sinus?

79
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37 vs 55 degrees

What is the OML alignment for a waters sinus vs modified waters?

80
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Frontal Sinuses

What is 29?

<p>What is 29?</p>
81
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Sell turcica

What is 30?

<p>What is 30?</p>
82
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Sphenoid sinus

What is 31?

<p>What is 31?</p>
83
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Ethmoid sinuses

What is 32?

<p>What is 32?</p>
84
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Maxillary sinuses

What is 33?

<p>What is 33?</p>
85
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Lateral projection & all sinuses

What projection is this, which sinuses should be visualized?

<p>What projection is this, which sinuses should be visualized?</p>
86
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Frontal Sinus

What is 36?

<p>What is 36?</p>
87
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Ethmoidal sinus

What is 37?

<p>What is 37?</p>
88
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Petrous Ridge

What is 38?

<p>What is 38?</p>
89
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Sphenoid sinus

What is 39?

<p>What is 39?</p>
90
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Maxillary sinus

What is 40?

<p>What is 40?</p>
91
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PA Axial Caldwell. frontal and ethmoid

What projection is this?

Which sinuses should be visualized?

<p>What projection is this?</p><p>Which sinuses should be visualized?</p>
92
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Frontal Sinus

What is 43?

<p>What is 43?</p>
93
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Ethmoid Sinus

What is 44?

<p>What is 44?</p>
94
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Maxillary sinus

What is 45?

<p>What is 45?</p>
95
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Petrous ridge

What is 46?

<p>What is 46?</p>
96
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Waters method & Maxillary sinuses

What projection is this, and what sinuses should be visualized?

<p>What projection is this, and what sinuses should be visualized?</p>
97
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Waters method

What projection is this?

<p>What projection is this?</p>
98
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maxillary sinus

What is 54?

<p>What is 54?</p>
99
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Lateral Sinuses:

- Sella turcica should not be rotated, orbital roofs and mandibular rami should be superimposed.

- all four sinus groups, but the sphenoid sinus is of primary importance

What are the eval criteria for this image?

<p>What are the eval criteria for this image?</p>
100
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PA Axial Caldwell:

- Distance between the lateral border of the skull to the mandibular condyles should be equal on both sides

- Petrous ridges should be symmetric on both sides lying in the lower third of the orbit.

- frontal sinuses should lie above the frontonasal suture and the anterior ethmoid sinuses should be clearly visualized

What are the eval criteria for this image?

<p>What are the eval criteria for this image?</p>