Aortic Valvular Heart Disease
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The aortic valve consists of three cusps, an annulus, and commissures. Aortic stenosis and regurgitation are increasing in prevalence as the population ages. Aortic stenosis is the most common form of valvular heart disease for valve replacement. Bicuspid aortic valve is the most common congenital cardiac malformation and is at increased risk of both valvular and vascular complications. Echocardiography is the standard tool in the evaluation of aortic valve disease. Cardiac computed tomography (CT) and magnetic resonance imaging (MRI) are emerging as powerful imaging tools by providing valve morphology, quantitative evaluation of valvular dysfunction, determination the hemodynamic information of valvular dysfunctions on cardiovascular structures, and anatomic information of the coronary artery and ascending thoracic aorta. The purposes of this chapter are to introduce the role of cardiac CT and MRI in the quantification of the severity of aortic valve dysfunction and to describe the imaging findings of normal anatomy, congenital abnormalities and acquired pathologic condition of the aortic valve, and prosthetic valvular dysfunction.
KeywordsAortic Valve Aortic Stenosis Infective Endocarditis Aortic Regurgitation Cardiac Magnetic Resonance Imaging
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