chest · Lateral (Left)
Chest Lateral
Patient erect, left side against IR (left lateral) for heart nearer IR.
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How to perform this view
- 01
Stand patient with left side against chest stand.
- 02
Raise both arms above head, holding opposite elbows.
- 03
Ensure MSP parallel to IR - no rotation or tilt.
- 04
Raise chin; adjust IR top 4-5 cm above shoulders.
- 05
Centre CR at T7 level, mid-coronal plane.
- 06
Expose on full inspiration.
Anatomical & patient position
Patient: Patient erect, left side against IR (left lateral) for heart nearer IR.
Part: MSP parallel to IR; arms raised above head holding elbows; mid-coronal plane centred to IR.
Central ray & centring point
Horizontal, perpendicular to IR at T7 level, mid-coronal plane (axilla).
Exposure factors
kVp
115-125 kVp
mAs
4-8 mAs (AEC: centre chamber)
SID
180 cm (72 in)
IR size
35 x 43 cm portrait
Grid
Yes
Respiration
Full inspiration, suspended
Clinical indications
- Localise lesions seen on PA
- Retrocardiac and posterior costophrenic pathology
- Small effusions
- Anterior mediastinal masses
Contraindications & precautions
- Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
- Unable to raise arms / stand - do cross-table lateral
Structures shown & evaluation criteria
- Entire lungs including posterior costophrenic angles
- Sternum anteriorly, thoracic spine posteriorly
- Hilar region centred
- Posterior ribs superimposed (no rotation)