Cervical - AP Vertibral Arch
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Cervical - AP Vertibral Arch |
Area Covered | Cervical vertebra from C4 to C7. Posterior elements of mid and distal cervical and proximal thoracic vertebrae |
Pathology shown | Pathology of posterior vertebral arch aspects of C4 to C7 or spinous processes of cervicothoracic vertebra |
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 20° to 30° caudal CR directed to enter at lower margin of thyroid cartilage |
Collimation | Centre: lower margin of thyroid cartilage, 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 | Lateral Marker orientation AP |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspended |
Positioning | In general,
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Critique | Positioning |
Special Notes |