Aortic roots assessment by an automated three-dimensional transesophageal echocardiography: an intra-individual comparison

AbstractTo evaluate the accuracy, reproducibility, and transcatheter heart valve (THV) sizing efficiency of an automated 3-dimensional transesophageal echocardiographic (3D-TEE) post-processing software in the assessments of aortic roots, intra-individually compared with multidetector computed tomography (MDCT). We prospectively studied 67 patients with normal aortic roots. We measured diameters of aortic annulus (AA), sinus of Valsalva (SOV), and sino-tubular junction (STJ) by full-automated and semi-automated methods using 3D-TEE datasets, then compared them to corresponding transthoracic echocardiography and MDCT values. THV sizes were chosen based on echocardiography and MDCT measurements according to recommended criterion. Taking MDCT planimetered diameters as reference, the full-automated (r: 0.4745 –0.8792) and semi-automated (r: 0.6647–0.8805) 3D-TEE measurements were linearly correlated (p <  0.0001). The average differences between semi-automated or full-automated measurements and reference were 0.3 mm or 1.3 mm for AA, − 1.9 mm or − 0.5 mm for SOV, and − 0.1 mm or 1.9 mm for STJ, respectively. The intra-class correlation coefficients of semi-automated method were 0 .79–0.96 (intra-observer) and 0.75–0.92 (inter-observer). THV sizing by semi-automated measurements using echocardiographic criteria was larger than that by MDCT measurements using MDCT criteria (p <  0.0001) but equivalent (p >  0.05) if both using MDCT sta...
Source: The International Journal of Cardiovascular Imaging - Category: Radiology Source Type: research