The role of trans-thoracic echocardiography in the assessment of aortic annular diameter

We aimed to compare two-dimension transthoracic echocardiogram (2D-TTE) and three-dimension transthoracic echocardiogram (3D-TTE) measurements of the aortic annular diameter using multi-detector CT (MDCT) as a gold standard.This prospective observational study included 50 consecutive patients who ca...

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Bibliographic Details
Published in:	Medicine (Baltimore) Vol. 100; no. 9; p. e24682
Main Authors:	Naguib, Khaled I., Attia, Mohamed A., Bashandy, Mohamed S., Reihan, Muhammad Saad, Dabash, Tarek Ahmed, El-Salam, Ahmed B. Abd, Helal, Hosam H., Bahbah, Eshak I.
Format:	Journal Article
Language:	English
Published:	United States Lippincott Williams & Wilkins 05-03-2021
Subjects:	Adult Aorta - diagnostic imaging Aortic Valve - diagnostic imaging Aortic Valve Disease - diagnostic imaging Body Weights and Measures - methods Echocardiography - statistics & numerical data Echocardiography, Three-Dimensional - statistics & numerical data Female Humans Male Middle Aged Multidetector Computed Tomography - statistics & numerical data Observational Study Prospective Studies Reproducibility of Results
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Summary:	We aimed to compare two-dimension transthoracic echocardiogram (2D-TTE) and three-dimension transthoracic echocardiogram (3D-TTE) measurements of the aortic annular diameter using multi-detector CT (MDCT) as a gold standard.This prospective observational study included 50 consecutive patients who came to the cardiology department, Al-Azhar University Hospital, New Damietta, for MDCT coronary angiography. The study was carried out in the period from July 2016 until February 2017. All patients were subjected to informed consent, clinical history, physical examination, transthoracic echocardiography 2D and 3D, and MDCT.The aortic annular areas measured by MDCT and 3D-TTE were significantly larger than areas by 2D-TTE. A good correlation (r = 0.82) was observed between the areas obtained by 3D-TTE and MDCT; however, the correlation between the values by 2D-TTE and MDCT was rough (r = 0.30). Eccentricity Index (EI) values in 28% of the patients were greater than 0.1, that is, the aortic annulus was elliptical.Accuracy of aortic annular diameter measurement by 3D-TTE was superior to that by 2D-TTE. Three-D TTE and MDCT revealed that the shape of the aortic annulus was elliptical in 28% to 30% respectively of study subjects. There is a strong concordance between the minimum and the maximum diameter determine by 3D-TTE and MDCT.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Undefined-3
ISSN:	0025-7974 1536-5964
DOI:	10.1097/MD.0000000000024682