chest · RAO 15-20 deg
Sternum RAO
Patient prone or erect, rotated 15-20 deg into RAO to project sternum over heart shadow.
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How to perform this view
- 01
Position patient semi-prone, right anterior side down.
- 02
Rotate 15-20 deg (more for thin, less for large chest).
- 03
Centre sternum to midline of table.
- 04
CR to centre of sternum, 2.5 cm left of MSP at T7.
- 05
Use breathing technique (long exposure, shallow breathing) to blur ribs.
Anatomical & patient position
Patient: Patient prone or erect, rotated 15-20 deg into RAO to project sternum over heart shadow.
Part: Sternum centred to IR; right arm by side, left arm up.
Central ray & centring point
Perpendicular to IR at T7, 2.5 cm left of spine.
Exposure factors
kVp
65-75 kVp
mAs
15-30 mAs (long time, low mA)
SID
100 cm
IR size
24 x 30 cm portrait
Grid
Yes
Respiration
Shallow breathing (orthostatic technique)
Clinical indications
- Sternal fracture after blunt trauma
- Sternal osteomyelitis
- Post-sternotomy wires
Contraindications & precautions
- Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
- Severe trauma unable to rotate
Structures shown & evaluation criteria
- Entire sternum including manubrium and xiphoid
- Sternum over heart shadow, free of spine