ABSTRACT
Positioning for lateral sternum projection. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_79a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
A vertical Bucky DDR system is employed, or a 24 cm × 30 cm CR cassette is selected for use in the Bucky mechanism.
The patient sits or stands, with either shoulder against a vertical Bucky or image receptor stand.
The median sagittal plane of the trunk is adjusted parallel to the image receptor.
The sternum is centred on the image receptor.
The patient’s hands are clasped behind the back, and the shoulders are pulled well back immediately before exposure.
The image receptor is centred at a level 2.5 cm below the sternal angle.
If the patient is standing, the feet should be separated to aid stability.
An FRD of 120–150 cm is selected to reduce magnification.
