Anatomy
Which cervical vertebra has no body in mature skeletons?
C1 (Atlas)
What vertebrae is at the level of the Adams Apple?
C5
What do you call an avulsion fracture of the spinous process of any vertebra of C6-T1?
Clay shoveler's fracture
What is the minimum SID required for an AP open mouth projection?
40 inches
What angulation is used for anterior oblique's?
15-20 degree caudad to C4
Where is the odontoid process in an embryo?
Embryonically the odontoid process is actually the body of C1 but fuses to the C2 during development
The gonion can be palpated to locate which vertebrae?
C3
In the Hangman's fracture, which cervical vertebra usually subluxate?
C2 on C3
For an AP open mouth projection, where is CR directed to?
Center of open mouth
If the patient is under rotated, what anatomy appears more closed?
intervertebral foramina
Unique characteristics of cervical vertebrae include: transverse foramina, overlapping vertebral bodies and_____?
Mastoid Tip
What fracture that involves the base of dens and can extend into lateral masses of C1?
Odontoid fracture
What particular anatomy is demonstrated for Fuchs method?
Odontoid process (dens)
Which position would the patient get lower thyroid dose?
Anterior obliques
Which cervical vertebrae are considered "typical"?
C3 - C6
Which cervical vertebrae is often palpated to assist with positioning for a PA Chest?
The vertebral prominence of C7
Aside from radiographic imaging, what alternative modality can clearly demonstrate a Herniated nucleus pulposus?
MRI
What is the required CR angulation for AP axial projection if the patient is supine?
15O cephalad
What would be the side of interest in an RPO position?
Left
Name the short column of bone between the superior and inferior articular processes.
Articular Piller
The _______ can be used as a landmark for centering when additional images are needed to demonstrate alignment of C7 to T1 when the shoulders are too dense for adequate penetration on a routine lateral.
Vertebral Prominence
What fracture that has a radiographic offset or spreading of the lateral masses of C1 relative to dens?
Jefferson fracture
How is the CR be projected for a Judd method?
Parallel to MML (mentomeatal line)
How are the pedicles demonstrated in an LAO position?
In profile.