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© 2004 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 23:1057-1064 • 0278-4297

Sonographic Follow-up After Visceral Artery Stenting

Zita Morvay, MD, PhD, Endre Nagy, MD, PhD, Róbert Bagi, MD, Gyorgy Ábrahám, MD, PhD, Róbert Sipka, MD and András Palkó, MD, PhD

Departments of Radiology (Z.M., E.N., A.P.) and Surgery (R.S.) and First Department of Internal Medicine (G.A.), Szeged Medical University, Szeged, Hungary; and Department of Radiology, Szentes County Hospital, Szentes, Hungary (R.B.).

Address correspondence and reprint requests to Zita Morvay, MD, PhD, Department of Radiology, Szeged Medical University, Korányi Fasor 8, 6720 Szeged, Hungary. E-mail: mzita{at}radio.szote.u-szeged.hu.

Objective. The aim of this study was to evaluate the sonographic features of stents and the flow parameters of the visceral arteries after stent implantation. Methods. Since 1996, 34 stenoses of the visceral arteries (2 mesenteric, 4 celiac trunk, and 28 renal arteries) in 28 patients have been treated with metallic stent implantation in the Department of Radiology of Szeged Medical University. All these patients were regularly followed sonographically. For the diagnosis of restenosis, previously published criteria were used. Results. All the mesenteric and celiac stents could be visualized, but none of the renal stents were clearly seen sonographically. The flow parameters could be established in all cases. Sonographic examination revealed 1 occlusion, 2 restenoses, and 1 stent displacement. All these abnormalities were confirmed by other imaging modalities. Conclusions. Sonography is a useful tool in the follow-up of patients after visceral artery stenting. Despite the fact that none of the renal artery stents were visualized directly, the flow parameters could be evaluated, and the pathologic changes were found.

Key Words: duplex sonography • follow-up • stenting • visceral artery

Abbreviations: AT, acceleration time • CT, computed tomographic • PTA, percutaneous transluminal angioplasty • RI, resistive index

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Copyright © 2004 by the American Institute of Ultrasound in Medicine.