04 July 2015
1) The postero-anterior (PA) radiograph is also called as the "PA chest". It simply means that the X-ray beams penetrate the patients body from posterior to anterior direction i.e from the patient's back to the front.
2) The X-ray tube is at the back of the patient and the X-ray film/detector/cassette is in the front.
3) Conventionally,...
