Overview
The RAO sternum projects the sternum over the heart to reduce superimposition and improve visualization. The patient is rotated with the right anterior chest closest to the detector. This view is useful for suspected sternal fractures and lesions.
Technique
Rotate the patient approximately 15 to 20 degrees RAO and center the detector to the sternum. Use shallow breathing or suspended respiration to reduce motion blur. Collimate tightly to the sternum to reduce dose.
Clinical Indications
RAO sternum is indicated for trauma evaluation and persistent sternal pain. It helps detect cortical disruption and displacement. CT is used when radiographs are inconclusive or complex injury is suspected.
Image Assessment
Assess the sternal body manubrium and xiphoid for fractures and deformity. Evaluate for adjacent mediastinal widening or soft tissue swelling. Correlate with clinical findings and ECG when indicated.