decubitus radiograph

de·cu·bi·tus ra·di·o·graph

a radiograph of a recumbent subject on his side, made in the frontal projection with a horizontal x-ray beam.
References in periodicals archive ?
19,25) Lateral decubitus radiograph with the affected side down is the more sensible view to identify an effusion of 5 to 15 ml.
Hence, a left lateral decubitus radiograph would accentuate a pneumothorax on the right side of the patient.
If PTX is suspected but not definite on supine CXR, then upright, expiratory, or bilateral decubitus radiographs should be obtained (Figure 7).