HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) CME Test (opens in a new window) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sebastià, C. Articles by Alvarez-Castells, A. Search for Related Content PubMed PubMed Citation Articles by Sebastià, C. Articles by Alvarez-Castells, A. Related Collections Cardiac Radiology Computed Tomography

Aortic Stenosis: Spectrum of Diseases Depicted at Multisection CT¹

¹ From the Institut de Diagnòstic per la Imatge (C.S., M.P.L., E.C.) and the Department of Radiology (S.Q., R.B., A.A.C.), Vall d’Hebron Teaching Hospital, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain. Presented as an education exhibit at the 2002 RSNA scientific assembly. Received February 7, 2003; revision requested March 18; final revision received May 20; accepted May 22. Address correspondence to C.S. (e-mail: sebastia@hg.vhebron.es).

Aortic stenosis, or narrowing of the aortic lumen, has many causes. It may originate in coarctation or pseudocoarctation of the aorta, midaortic dysplastic syndrome, atherosclerosis, Takayasu arteritis, aortic dissection, or various intraaortic and periaortic diseases or as a result of aortic surgical repair. The impedance of blood flow through the stenotic segment may lead to the development of various collateral arterial pathways, according to the location of stenosis. Aortography is the standard technique for evaluating aortic stenosis; however, helical computed tomography (CT), particularly multisection CT, may provide additional information or in some cases may be used instead of arteriography. Multisection CT can depict the aorta and thoracoabdominal collateral pathways in less than 1 minute and provide high-quality arterial-phase imaging data suitable for multiple two-dimensional and three-dimensional reformations. To produce a useful differential diagnosis, the imaging specialist must be able to recognize the type of stenosis and the configuration of collateral circulatory pathways.

© RSNA, 2003

Index Terms: Aorta, stenosis or obstruction, 56.151 • Aorta, CT, 56.1211

This article has been cited by other articles:

				F J DE ALBUQUERQUE, A C COUTINHO, E C CASTRO NETTO, R C DOMINGUES, and E L GASPARETTO Infra-renal abdominal aorta agenesis: a case report with emphasis on MR angiography findings Br. J. Radiol., July 1, 2008; 81(967): e179 - e183. [Abstract] [Full Text] [PDF]

				S. Leschka, E. Oechslin, L. Husmann, L. Desbiolles, B. Marincek, M. Genoni, R. Pretre, R. Jenni, S. Wildermuth, and H. Alkadhi Pre- and Postoperative Evaluation of Congenital Heart Disease in Children and Adults with 64-Section CT RadioGraphics, May 1, 2007; 27(3): 829 - 846. [Abstract] [Full Text] [PDF]