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Multislice computed tomography for detection of patients with aortic valve stenosis and quantification of severity.

Abstract：

OBJECTIVES:The purpose of this study was to evaluate whether multislice computed tomography (MSCT) provides a reliable, noninvasive imaging modality for identification of patients with degenerative aortic valve stenosis (AS) by quantifying the aortic valve area (AVA) in comparison to the accepted diagnostic standard transthoracic echocardiography (TTE). BACKGROUND:Management of patients with degenerative AS is based on the severity of disease. The severity of AS in clinical practice is assessed by TTE and classified as mild, moderate, or severe according to the AVA. METHODS:Forty-six patients were examined with contrast-enhanced, electrocardiogram-gated, 16-row MSCT for the evaluation of the diagnostic accuracy. In 30 patients, quantification of the AVA with MSCT was compared to TTE using the continuity equation with Doppler velocity-time integral for calculation of the AVA. RESULTS:Sensitivity of MSCT for the identification of patients with degenerative AS was 100%, and the specificity was 93.7%. Thirty of 46 patients had AS determined by TTE. Quantification of AVA by MSCT (mean AVA = 0.94 cm2) in patients with AS showed a good correlation to TTE (r = 0.89; p < 0.001). Bland-Altman plot illustrated good intermodality agreement between the two methods (limits of agreement, 0.20; 0.29). CONCLUSIONS:Multislice computed tomography may provide an accurate, noninvasive imaging technique for detection of patients with AS and quantification of AVA.

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Feuchtner GM,Dichtl W,Friedrich GJ,Frick M,Alber H,Schachner T,Bonatti J,Mallouhi A,Frede T,Pachinger O,zur Nedden D,Müller S

doi

10.1016/j.jacc.2005.11.056

subject

Has Abstract

pub_date

2006-04-04 00:00:00

pages

1410-7

issue

7

eissn

0735-1097

issn

1558-3597

pii

S0735-1097(06)00019-2

journal_volume

47

pub_type

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