CPT® Code 76604

A real-time ultrasound examination of the chest, which includes the mediastinum, is a diagnostic imaging procedure that utilizes high-frequency sound waves to create images of the internal structures within the chest cavity. This procedure is particularly useful for evaluating the mediastinum, the area between the lungs that contains vital structures such as the heart, major blood vessels, trachea, esophagus, and lymph nodes. The ultrasound is performed with image documentation, allowing for a visual record of the findings. In pediatric patients, this ultrasound can be instrumental in diagnosing conditions such as pneumonia, pleural effusion, diaphragmatic palsy, and bronchopulmonary sequestration, especially when initial plain film imaging yields inconclusive results. The patient is typically positioned supine, with a pillow placed under the shoulders to facilitate optimal imaging angles. The neck is slightly extended, and the chin is flexed to enhance access to the suprasternal and supraclavicular areas. Acoustic coupling gel is applied to these areas to ensure effective transmission of the ultrasound waves. The ultrasound probe is then maneuvered to capture various views, including semicoronal, sagittal, parasagittal, and oblique perspectives of the soft tissues in the chest and mediastinum. This comprehensive approach allows for thorough evaluation of any abnormalities, helping to identify the structure of origin, nature, internal architecture, and other characteristics that may lead to a definitive diagnosis. The physician subsequently reviews the captured ultrasound images and provides a detailed written interpretation of the findings.