Anatomy
When referring to the C1, what is the articular pillar sometimes called?
Lateral Mass
How many degree's is the patient position?
45
In what direction is the CR directed for a trauma patient?
Horizontal
Which specific projection will demonstrate best an odontoid fracture?
AP Open Mouth
In addition to suspended respiration, what C-spine projection also requires a patient not to swallow during exposure?
AP Axial Projection
The zygapophyseal joints of C2 - C7 are located ______ degrees to the midsagittal plane
90 Degrees
What breathing instructions are given for obliques?
Suspended Respiration
What should be free of superimposition in a Lateral C-Spine?
The bodies of the articular pillars
(Picture on Powerpoint slide)
What pathology is it?
Wedge fracture
What special projection requires a continuous motion of the mandible during exposure?
AP "wagging jaw" or Ottonello method
Name the joint between C1 and C2
Atlantoaxial Joint
Instructing the patient to ___________ will prevent superimposition of the mandible.
Protract chin
Why is a longer SID (72 inches)recommended?
To compensate for increased OID and provide for greater spatial resolution.
What pathological condition that creates a bow-tie artifact on the lateral cervical spine image?
Facet-unilateral subluxation
If able, how is the patient's neck be positioned for AP Axial projection of vertebral arch (pillars) of C-spine?
Hyperextend
What joint connects C1 to the occipital condyles of the skull?
Atlantooccipital Joints
In an LPO position, what pedicles are visualized?
Right
What positioning line is parallel to the floor for an erect lateral?
Acanthiomeatal line (AML)
This injury is a result of compression with hyperflexion in the cervical region. What fracture is it?
Teardrop burst fracture
Which C-spine projection requires low mA and long exposure time?
AP "wagging jaw" or Ottonello method
All cervical vertebrae have how many foramina?
3 foraminia each
What intervertebral disk spaces and intervertebral foramina are of interest?
C2-C7
What study is performed for post surgical spinal fusion for follow up?
Hyperflexion and Hyperextension
When the soft inner part of intervertebral disk protrudes through the outer layer into the spinal canal, what condition is it?
Herniated nucleus pulposus
What radio-graphic sign indicates that there is optimal flexion/extension of the neck for an AP Open mouth projection?
Superimposition of the upper incisors on the base of the skull