Abstract
PurposeThe purpose of the study was to compare proximal aortic measurements from electrocardiogram-gated computed tomography (CT) to transesophageal echocardiography (TEE) and to evaluate differences in cusp–cusp and cusp–commissure CT measurements of sinus of Valsalva (SOV). MethodsThis retrospective study (n=25) compared aortic diameters from CT using manual double-oblique multiplanar reformats (MPRs) and semiautomatic centerline method to TEE. ResultsCT MPR and centerline measurements were higher than TEE for sinotubular junction and ascending aorta. At SOV, cusp–cusp diameters (MPR and centerline methods) and cusp–commissure measurement (centerline method) were larger than TEE. ConclusionsAortic measurements were larger on CT than TEE. Precise difference depended on location and measurement technique.
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