Overview
The lateral chest radiograph complements the PA view by showing retrosternal and retrocardiac spaces. The patient stands with left side against the detector and arms raised. This view improves localization of lesions and assessment of pleural effusion.
Technique
Position the patient with true lateral alignment and ensure no rotation. Instruct breath hold at full inspiration to maximize lung expansion. Use consistent exposure settings matched to the PA view.
Clinical Indications
Lateral chest is used to localize opacities and evaluate posterior lung fields. It helps detect small effusions and subtle consolidations. It is routinely obtained with the PA view for comprehensive assessment.
Image Assessment
Assess the retrosternal clear space and posterior costophrenic angles. Look for layering fluid and focal airspace disease. Correlate findings with the PA view for accurate interpretation.