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European Heart Journal Advance Access published online on October 2, 2006
European Heart Journal, doi:10.1093/eurheartj/ehl273
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European Heart Journal © The European Society of Cardiology 2006; all rights reserved
Received January 3, 2006
Revised July 5, 2006
Accepted September 11, 2006

Clinical research

Diagnosis of aortic valvular stenosis by multislice cardiac computed tomography

Erik Bouvier 1 *, Damien Logeart 2, Jean-Louis Sablayrolles 3, Jacques Feignoux 3, Claude Scheublé 3, Thierry Touche 3, Gabriel Thabut 4, and Alain Cohen-Solal 2

1 Service de Radiologie et de Cardiologie, Centre Cardiologique du Nord, Saint Denis, France; Service de Cardiologie, Hôpital Lariboisière, Paris, France
2 Service de Cardiologie, Hôpital Lariboisière, Paris, France
3 Service de Radiologie et de Cardiologie, Centre Cardiologique du Nord, Saint Denis, France
4 Service de Pneumologie, Hôpital Bichat, Paris, France

* To whom correspondence should be addressed.
Erik Bouvier, E-mail: erik.bouvier{at}wanadoo.fr


  Abstract

Aims Current improvements in spatial, temporal, and contrast resolution of multislice computed tomography (CT) could be useful in the assessment of valvular diseases. We evaluated the diagnostic accuracy of multislice CT for the identification and quantification of aortic valvular stenosis (AS), compared with echography.

Methods and results Consecutive patients, referred for coronary CT, were evaluated for AS, by the use of standard electrocardiography-gated 16-slice CT protocol. Multiplanar reformat was applied to systolic phases of the cardiac cycle, with projection on thick slices for measuring the aortic valvular area (AVA). CT results were compared with echocardiographic-based measurement of the AVA. Among 107 enrolled patients, CT analysis of the AVA was feasible in 103. Among the 30 patients with AS, Bland-Altman analysis showed good agreement between the two methods [mean difference -7 mm2 (-40-25 mm2)].

Conclusion CT analysis of aortic valve is feasible in most cases and allows for reliable diagnosis and quantification of AS.

Keywords: Aortic stenosis; Diagnosis; Cardiac computed tomography.
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