Spine positions and CR Flashcards
(33 cards)
what is the CR of an AP open mouth?
mid mouth
what 2 structures need to be superimposed to showcase a correct AP open mouth?
base of the skull and maxilla/upper incisors
what anatomy must be shown on an AP open mouth?
- odontoid process
- vertebral body of C2
- lateral masses of C2
- traverse process of C2
- C1-C2 atlantoaxial joints
what is the CR of an AP axial cervical spine?
C4 (thyroid/hyoid bone) with a tube angle of 10-15 degrees cephalad
what anatomy must be shown for an AP axial cervical spine?
C3-T2 vertebral bodies and intervertebral joints
what is the CR of an oblique cervical spine?
C4 with a tube angle of 10-15 degrees cephalad
what anatomy must be demonstrated in an oblique cervical spine?
intervertebral foramina open and pedicles
what is the CR of a lateral cervical spine?
- C4
- SID of 72 inches
what anatomy must be demonstrated in a lateral cervical spine?
C1-C7 intervertebral joint spaces and vertebral bodies demonstrated
why do we need to lift the chin up when positioning for a lateral c-spine?
to remove any superimposition between the mandible and C1-C2
what is the CR of a Swimmer’s view?
T1/1 inch above jugular notch
- SID of 72 inches
what anatomy is demonstrated in the Swimmer’s View?
vertebral bodies and intervertebral disk spaces from C5-T3
what is the CR for an AP thoracic spine?
- T7
- 3-4 inches below jugular notch
what anatomy is demonstrated in an AP thoracic spine?
- 12 thoracic bodies
- intervertebral joint spaces
- spinous and transverse processes
what is the CR for a lateral thoracic spine?
- T7
- 3-4 inches below the jugular notch
what anatomy is demonstrated in a lateral thoracic spine?
- 12 thoracic bodies
- intervertebral joint spaces open
- spinous and transverse processes
what is the CR for an AP lumbar spine?
- L3
- 1.5 inches above iliac crest
what anatomy must be demonstrated in an AP lumbar spine?
- T12-S1
- bodies
- intervertebral joints open
- spinous/transverse process
- SI joints
- sacrum
what is the CR for an oblique lumbar spine?
- L3
- 1-2 inches above iliac crest and 2 inches medial upside ASIS
what anatomy is demonstrated in an oblique lumbar spine?
- LPO/RPO = L1-L4 downside zygapophyseal joints. Scottie dog visible
- LAO/RAO = L1-L4 upside zygapophyseal joints. Scottie dog visible
what is the CR of a lateral lumbar spine?
- L3
- 1.5 inch above the iliac crest
what anatomy is demonstrated in the lateral lumbar spine?
- L1-L4 bodies
- intervertebral joint spaces open
- foramina and spinous process
what is the CR for a spot/L5-S1 lumbar spine?
- 1.5 inches inferior to the iliac crest
- 2 inches posterior to ASIS
what anatomy is demonstrated in the spot/L5-S1 lumbar spine?
- open L5-S1 bodies
- intervertebral joint spaces open
- foramina/spinous process
