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Radiology, Vol 159, 33-38, Copyright © 1986 by Radiological Society of North America

ARTICLES

Normal and occluded mediastinal veins: MR imaging

KK McMurdo, G de Geer, WR Webb and G Gamsu

The potential of magnetic resonance (MR) imaging to demonstrate the mediastinal veins was evaluated retrospectively in 25 patients with no evidence of a venous abnormality, 28 patients who had narrowing or occlusion of a mediastinal vein, and two patients who had a venous anomaly. In patients with venous occlusion, the MR images graphically demonstrated the sites and extent. MR images also demonstrated slow flow within venous structures proximal to the obstruction. Generally, venous collaterals in the mediastinum and chest wall were better seen with contrast material-enhanced computed tomography scans. The marked contrast on MR images between the signal void of normal vascular structures, the moderate signal intensity of tumor, and the high signal intensity of a thrombus or slowly flowing blood allows ready detection of venous occlusion and may suggest the nature of the occlusion.


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T. J. Kroencke, M. Taupitz, R. Arnold, L. Fritsche, and B. Hamm
Three-Dimensional Gadolinium-Enhanced Magnetic Resonance Venography in Suspected Thrombo-occlusive Disease of the Central Chest Veins
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[Abstract] [Full Text] [PDF]


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