Table 5.

Procedure Description Attributes Having Clinical Relevance in Chest Radiography

Procedure Attribute	Examples
Imaging modality	Digital x-ray, computed radiography
View/orientation	Postero-anterior (PA), antero-posterior (AP), lateral
Projection modifier	Cephalad angulation
Spatial conditions	Upright position, standing, supine position
Physical conditions	Lead marker affixed to skin
Field of view	Full, coned-down
Beam epicenter	Dependent chest wall, diaphragm, minor fissure
Beam path	Left to right, right to left, posterior to anterior
Primary anatomic target	Left hilum, mediastinum, right posterior basal segment
Timing	End-inspiratory, end-expiratory, midexpiratory
Functional conditions	Breath-hold, breathing, positive end-expiratory pressure
Chemical conditions	Barium contrast agent, oil-based contrast agent
Equipment	Vendor identifier, model number, software revision
Receptor	Tungsten, selenium, charge-coupled device