Transthoracic Echocardiography versus Computed Tomography for Ascending Aortic Measurements in Patients with Bicuspid Aortic Valve

In patients with BAV aortopathy, unbiased agreement between CTA and TTE imaging can be obtained between the CTA I-I method and TTE SAX mid-diastolic L-L method for the sinuses and the TTE LAX end-diastolic L-L method for the Asc-Ao. When using the CTA O-O method, the best agreement is obtained with the TTE SAX mid-diastolic L-L method for the sinuses (bias ∼2 mm) and the TTE LAX systolic L-L method (bias ∼1 mm) for the Asc-Ao.