Imaging for chest pain

Outpatient imaging is appropriate when:

• Acute life-threatening causes (heart attack, pulmonary embolism, aortic dissection, pneumothorax) have already been excluded
• Chest pain is musculoskeletal, persistent, or chronic
• A nodule was found on a prior study and follow-up is needed
• There is a known lung condition requiring serial imaging

Note that Precise does not perform calcium-score CT, coronary CTA, low-dose lung-cancer screening CT, echocardiography, or nuclear cardiology. Cardiac risk and screening exams are referred to centers offering those programs.

Chest X-ray is the most common first-line study for outpatient evaluation of cough, mild dyspnea, suspected pneumonia, follow-up of a known nodule, or persistent musculoskeletal chest pain.

Chest CT (with or without contrast) provides detailed evaluation of the lung parenchyma, mediastinum, pleura, and chest wall. It is used for follow-up of lung nodules, suspected lung disease, evaluation of pleural effusion, and after trauma.

Rib X-rays can be useful for focal point tenderness after trauma to evaluate for fracture, though management often does not change.

A chest CT evaluates:

• Lung parenchyma — nodules, consolidations, masses, fibrotic changes, emphysema
• Pleural space — effusion, thickening, masses
• Mediastinum — lymphadenopathy, masses (limited evaluation of the heart without dedicated cardiac protocols)
• Chest wall and bones — fractures, lesions

A chest X-ray is a quick screening tool that detects most pneumonias, large pleural effusions, pneumothorax, and significant masses, but misses many small nodules.

Musculoskeletal chest wall pain (costochondritis) — common, reproducible with palpation. Imaging is usually unremarkable.

Rib fracture — common after a fall, cough, or direct trauma. Often managed with pain control.

Lung nodule — small lung opacity. Most are benign; follow-up is guided by size, density, and risk factors (typically Fleischner Society guidelines).

Pneumonia — diagnosed clinically and confirmed on chest X-ray.

Pleural effusion — fluid in the chest cavity; multiple possible causes that may require further workup.

Reports return within a day; STAT reads in four hours. Next steps depend on the finding — pulmonology referral for nodules requiring closer follow-up or biopsy planning, primary care management for musculoskeletal pain or pneumonia, and cardiology workup if cardiac causes have not yet been excluded.

Bring your physician's order. Chest X-ray is quick — usually 15 minutes. Chest CT with contrast takes about 20 minutes once contrast is ready. See our chest X-ray page and our chest CT page for locations.