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Imaging Findings in Takayasu's Arteritis

¹ Department of Radiology, University of California, San Francisco, 505 Parnassus Ave., San Francisco, CA 94143.
² Department of Radiology, San Francisco General Hospital, 1001 Potrero Ave., Rm. 1X 55A, Box 1325, San Francisco, CA 94110.
³ Department of Radiology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905.

OBJECTIVE. The objective of our study was to evaluate the clinical usefulness of cross-sectional imaging for establishing the diagnosis of Takayasu's arteritis (TA), an inflammatory vascular disorder that produces arterial stenoses and aneurysms primarily involving the thoracoabdominal aorta and its branches and the pulmonary arteries.

CONCLUSION. CT and MRI findings of TA include vascular wall thickening and enhancement early in the disease, and arterial stenoses, occlusions, and aneurysms later in the disease. Cross-sectional imaging is useful for establishing the diagnosis of TA and for showing response to nonsurgical therapy or for planning a surgical intervention.

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