A comparison of aortic root measurements by echocardiography and computed tomography

The Journal of Thoracic and Cardiovascular Surgery

Tomasz Plonek¹  Maciej Bochenek²  Mikolaj Berezowski³  Grzegorz Filip⁴ 

[1] Department of Cardiac Surgery, Wroclaw Medical University, Wroclaw, Poland;Department of Cardio-vascular Surgery, Heart Centre Freiburg University, Faculty of Medicine, University of Freiburg, Freiburg, Germany;Department of Cardiovascular Surgery and Transplantology, Jagiellonian University, John Paul II Krakow Specialist Hospital, Krakow, Poland;Exstent Ltd, Cheltenham, United Kingdom

关键词: aorta;    aortic root;    aneurysm;    echocardiography;    computed tomography;    measurement;   

DOI  :  10.1016/j.jtcvs.2018.07.053

学科分类：心脏病和心血管学

来源: Mosby, Inc.

【 摘 要 】

ObjectivesThe aim of the study is to evaluate an optimal way to assess the dimensions of the aortic root and each of the sinuses of Valsalva and examine how a single measurement in 1 plane (echocardiography or 2-dimensional computed tomography) can underestimate the maximum dimension of the aortic root.MethodsComputed tomography and transthoracic echocardiography images of the aortic root and ascending aorta of 112 patients were analyzed. The minimum and maximum aortic root dimensions, the root perimeter, and the total area of all 3 sinuses of Valsalva were measured on a plane perpendicular to the long axis of the aorta using 3-dimensional multiplanar reconstruction. Moreover, the maximum root dimension was compared with the measurements obtained from the echocardiography and 2-dimensional computed tomography angiography measurements.ResultsThe difference in the measurements of the minimum and maximum root dimension was 5.4 ± 3.2 mm (range, 0-21 mm, P P = .036). The maximum root dimension measured in 3-dimensional multiplanar reconstruction (49.1 ± 9.0 mm) differed significantly from the root dimension measured in transthoracic echocardiography in the parasternal long-axis view (44.8 ± 8.4 mm) and 2-dimensional computed tomography (axial plane: 45.5 ± 9.0 mm, coronal plane: 46.1 ± 8.8 mm, sagittal plane: 45.1 ± 8.9 mm) (P ConclusionsThe difference in the measurements of the minimum and maximum aortic root dimensions is significant and may exceed 20 mm, especially in patients with bicuspid aortic valves. Therefore, aortic root dimensions can be significantly underestimated with the measurement (echocardiography, computed tomography angiography) performed in only 1 plane.

【 授权许可】

Unknown