Coccyx - Lateral

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Coccyx - Lateral
Area Covered	Entire coccyx in lateral view
Pathology shown	Pathology of the coccyx
Radiographic Anatomy
IR Size & Orientation	18 x 24cm Portrait
Film / Screen Combination	Regular (CR and DR as recommended by manufacturer)
Bucky / Grid	Moving or Stationary Grid
Filter	No
Exposure	70 kVp 30 mAs
FFD / SID	100cm
Central Ray	CR perpendicular to IR CR 8-10cm posterior and 5cm distal to ASIS (centering for coccyx)
Collimation	Four sides of collimation Collimate closely to area of interest
Markers	Posterior Marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspended
Positioning	Patient in the lateral recumbent position Cushion for patients head Flex patients knees Align long axis of coccyx to CR and to midline of table/grid Ensure pelvis and torso are in a true lateral position CR perpendicular to IR CR 8-10cm posterior and 5cm distal to ASIS (centering for coccyx)
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes	Often the sacrum and coccyx views are ordered together, a single lateral centred to include both the sacrum and coccyx can be taken - this projection including both decreases dose to the gonads