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abdomen · Lateral (Dorsal Decubitus)
Abdomen Lateral (Dorsal Decubitus)
Patient supine, side against vertical IR, horizontal beam.
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AI Patient · KV Sir
How to perform this view
- 01
Lay patient supine on pad.
- 02
Place vertical IR against side.
- 03
Raise arms; centre CR 5 cm above iliac crest at mid-coronal plane.
- 04
Expose on expiration.
Anatomical & patient position
Patient: Patient supine, side against vertical IR, horizontal beam.
Part: Arms above head; mid-coronal plane centred; knees slightly flexed.
Central ray & centring point
Horizontal, at mid-coronal plane, 5 cm above iliac crest.
Exposure factors
kVp
85-95 kVp
mAs
30-50 mAs
SID
100 cm
IR size
35 x 43 cm
Grid
Yes
Respiration
Suspended expiration
Clinical indications
- Free air in neonates/critically ill
- Abdominal aortic calcification
- Prevertebral masses
Contraindications & precautions
- Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
Structures shown & evaluation criteria
- Prevertebral region
- Free anterior air