Diagnostic Imaging for Arterial Thoracic Outlet Syndrome

Essential Imaging Studies

• Chest radiography is used first to identify cervical ribs, first rib anomalies, or other osseous abnormalities, according to Praxis Medical Insights 1
• CTA with IV contrast, MRA, or duplex ultrasound are used to visualize arterial compression, stenosis, aneurysm, thrombus, or distal emboli, as recommended by Praxis Medical Insights 1
• Sagittal reformations on CTA are superior to axial slices alone, with underestimation of stenosis in 43% of axial vs. 10% of sagittal views, as reported by the Journal of the American College of Radiology 2, 3

Critical Pitfalls to Avoid

• Recurrent symptoms may occur if decompression is inadequate, as noted by Praxis Medical Insights 1