Takayasu’s Arteritis Spiral CT Angiography Findings

A33-year-old white woman with Takayasu’s arteritis (nonspecific arteritis) diagnosed 14 years earlier developed subacute dyspnea and hemoptysis. She had experienced transient cerebral ischemia 3 weeks before presentation. Spiral CT angiography, performed in a single breath-hold during a 120-mL bolus injection of 24% iodinated contrast material, revealed bilateral stenosis of the pulmonary arteries (Figure 1⇓), occlusion of the innominate brachiocephalic trunk with intraluminal thrombus, and stenosis of the left common carotid artery (Figure 2⇓). Two-dimensional multiplanar reformations and maximum intensity projection reconstructions were helpful in evaluating the occlusive lesions. Furthermore, axial images demonstrated circumferential …