Cervical - Oblique Vertebral Arch

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Cervical - Oblique Vertebral Arch
Area Covered	C1 to C7
Pathology shown	Pathology of the vertebral arches or pillars
Radiographic Anatomy	Cervical Spine Radiographic Anatomy
IR Size & Orientation	18 x 24 cm Portrait
Film / Screen Combination	Regular (CR and DR as recommended by manufacturer)
Bucky / Grid	Moving or Stationary Grid
Filter	No
Exposure	65 kVp 16 mAs
FFD / SID	100 cm
Central Ray	CR angled 30° to 40° caudal CR directed to exit the seventh cervical vertebra
Collimation	Collimate to the 18 x 24cm film size Shutter A: Open so that the light of the collimated field just includes the top of the ear. Shutter B: Open to include the soft tissue of the neck laterally
Markers	Anterior and Inferior Marker orientation is AP Mark the side being demonstrated (side that is up is demonstrated ie head turned to the left demonstrates the right side)
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspended
Positioning	Patient supine on the table Rotate the head 45° to 50° towards the unaffected side A 45° to 50° degree rotation shows second to seventh cervical vertebrae and first thoracic vertebra, a rotation as much as 60° to 70° is sometimes required for demonstration of the processes of the sixth and seventh vertebra and of the first to fourth thoracic vertebra Side that is up is demonstrated (mark the side being demonstrated accordingly eg head turned to the left demonstrates the right side, head turned to the right demonstrated the left side) CR angled 30° to 40° caudal CR directed to exit the seventh cervical vertebra
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes