Chest - Dorsal Decubitus
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Chest - Dorsal Decubitus |
Area Covered | Lung fields, apices, costophrenic angles |
Pathology shown | Pathologies involving the lung fields, changes in fluid position from PA/AP view and reveals any previously obscured pulmonary areas |
Radiographic Anatomy | Chest Radiographic Anatomy |
IR Size & Orientation | 35 x 43 cm Landscape |
Film / Screen Combination | Regular (CR and DR as recommended by manufacturer) |
Bucky / Grid | Moving or Stationary Grid |
Filter | No |
Exposure | 110 kVp 8 mAs |
FFD / SID | 180cm |
Central Ray | Directed to the mid coronal plane at the level of T7 Perpendicular to the IR |
Collimation | Centre: The mid coronal plane at the level of T7 Shutter A: Open to include the skin margins anteriorly and posteriorly Shutter B: Open to include lung apices superiorly (this is at the C7 level) and to include the diaphragm inferiorly |
Markers | Superior and Anterior Marker orientation AP Marker the side closest to the IR |
Shielding | Gonadal (check your department's policy guidelines) |
Respiration | On suspended deep inspiration |
Positioning |
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Critique | Positioning |
Special Notes |