"An AP oblique supine radiograph is a projection often used in barium studies and foreign body localisation."
"the patient is laying 30 degrees either LAO or RAO, often on a 30-degree wedge to ease of positioning"
"AP oblique projection"
"the midsagittal place (equidistant from each ASIS) at the level of the iliac crest"
"30-120 mAs; AEC should be used if available"
"SID"
"30-120 mAs; AEC should be used if available"