Week 3 - Cervical Spine Flashcards
Cervical
Spine SID + Lateral SID:
SID 40”; Lateral SID:60”
AP AXIAL
PP: Pt supine, either recumbent or erect,
Extend head to prevent superimposition of the mandible and the mid cervical vertebrae
CR: Through C4 15-20 degrees cephalad entering slightly inferior to the
prominent point of thyroid cartilage
IR: -
SS: The lower 5 cervical bodies and upper 2-3 thoracic bodies, the interpediculate spaces, the superimposed transverse and articular processes, and the intervertebral disk spaces
Palpable location for Cervical Spine
C7 - Vertebra Prominens
LATERAL (SID @ 60”) cervical
PP: N-Pt lateral seated or standing in front of vertical grid,
-Coronal plane that passes thru tips of
mastoid process midline of film
-Rest shoulder against grid, and rotate
anteriorly or posteriorly according to
persons natural kyphosis of back
-Depress shoulders as much as possible
and immobilize them by having pt hold
sandbags in each hand of equal
weight
-Elevate chin slightly to prevent
superimposition of mandibular rami
and spine
CR:Horizontal to midpoint of film, SID of at least 60” should be used to get better detail
IR:height of cassette centered to C4
SS: Lateral projection of cervical bodies and their interspaces, the articular pillars, the lower 5 articular facets and the spinous processes. The 7th vertebra should be shown if the shoulders are depressed enough
PA OBLQ AXIAL (RAO & LAO) Cervical
PP: Pt is in PA position, standing or seated preferred
-Rotate body 45 degrees to place foramina parallel to film (foramina closest to cassette are demonstrated
-Elevate chin slightly, and head may be turned slightly
CR: CR- To C4 15-20 degrees caudad
IR: -
SS: Intervertebral foramina and pedicles closest to film and an oblique projection of the bodies and other parts of the cervical column
AP AXIAL OBLQ (RPO & LPO)- Cervical
PP: Pt is in AP position, standing or seated preferred
-Rotate body 45 degrees to place foramina parallel to film (foramina closest to cassette are demonstrated
-Elevate chin slightly, and head may be turned slightly:
CR:CR- To C4 15-20 degrees cephalad
IR: Cassette centered 1” proximal to prominent point of thyroid cartilage
SS- Intervetebral foramina and pedicles farthest from the film:
AXIAL & ATLAS (OPEN MOUTH) Cervical
PP: Pt supine or erect, MSP midline
-Open mouth as wide as possible and adjust head so that a line from the lower edge of the upper incisors to the tip of the mastoid process is perpendicular to the film
-Instruct pt to phonate “ah” so the shadow of the tongue is moved out of the way and will not project on the atlas and axis and will prevent movement of mandible
CR- Perpendicular to midpoint of open mouth:
IR:Cassette centered at level of C2
SS- AP projection of atlas and axis:
AP DENS (FUCH METHOD)
PP: PATIENT POSITION- supine, MSP to midline of table
-Extend chin until tip of chin and tip of mastoid process are vertical
CR- Perpendicular to midpoint of film, entering neck just distal to tip of chin
IR:Cassette centered to level of mastoid processes
SS- AP projection of odontoid process lying within the shadow of the foramen magnum
**This position must not be attempted if there is a suspected fracture or degenerative disease of the upper cervical region
