Cervical - Cervicothoracic (Swimmers) (Twining Method)
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Cervical - Cervicothoracic (Swimmers) (Twining Method) |
Area Covered | Lower cervical and upper thoracic (C4 - T3 region) - vertebral bodies, intervertebral disk spaces and zygapophyseal joints |
Pathology shown | Payhology involving the inferior cervical spine, superior thoracic spine and adjacent soft tissue structures |
Radiographic Anatomy | Cervical Spine Radiographic Anatomy |
IR Size & Orientation | 24 x 30cm Portrait |
Film / Screen Combination | Regular (CR and DR as recommended by manufacturer) |
Bucky / Grid | Moving or Stationary Grid |
Filter | No |
Exposure | 80 kVp 60 mAs |
FFD / SID | 150 - 180 cm |
Central Ray | CR perpendicular to IR CR centred to T1 - approximately 2.5cm above sternal notch |
Collimation | Four sides of close collimation to area of interest approximately 10 x 15cm in size |
Markers | Anterior to Cervical Spine clear of perivertebral soft tissues Marker orientation AP |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | Suspended respiration on expiration - the shoulders are able to relax downwards on expiration |
Positioning | Ensure the removal of artefacts that may superimpose the anatomy of interest, such as necklaces and other jewellery If the patient is erect,
If the patient is supine,
|
Critique | Positioning |
Special Notes |