Lower-lobe lung disease, pleural effusions, and anterior mediastinal masses.
Lungs, trachea, bronchus, mediastinum, costophrenic angle
The patient may sit erect or stand straight with the chin up and their left side against the film image receptor.
A left lateral projection should be performed (because it gives more anatomical details) unless a right lateral projection is specifically requested by the physician.
Tell the patient to raise both arms above the head to prevent their superimposition on the chest field.
Make sure the patient is not leaning sideways, forward or backward
Size: 14’’x17’’ Orientation: Portrait
Central ray towards the center of the chest with height of 7th thoracic
Suspended with deep inspiration
Superiorly to above the shoulders, inferiorly to the 12th rib and laterally include skin margins