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A comparison of aortic root measurements by echocardiography and computed tomography

Tomasz Plonek1, Mikolaj Berezowski1, Maciej Bochenek2

  • 1Department of Cardiac Surgery, Wroclaw Medical University, Wroclaw, Poland.

The Journal of Thoracic and Cardiovascular Surgery
|September 20, 2018
PubMed

Insights

Single-plane imaging underestimates aortic root dimensions, especially in bicuspid aortic valve patients. Three-dimensional analysis provides a more accurate assessment of aortic root and sinus of Valsalva measurements.

Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Anatomy

Background:

  • Accurate aortic root measurement is crucial for diagnosing and managing cardiovascular conditions.
  • Traditional imaging methods may not fully capture the complex geometry of the aortic root.

Purpose of the Study:

  • To determine the optimal method for assessing aortic root and sinus of Valsalva dimensions.
  • To investigate the underestimation of aortic root dimensions by single-plane imaging techniques.

Main Methods:

  • Analysis of computed tomography and transthoracic echocardiography images from 112 patients.
  • Measurement of aortic root and sinus of Valsalva dimensions using 3D multiplanar reconstruction.
  • Comparison of 3D measurements with conventional 2D echocardiography and computed tomography angiography.

Main Results:

  • A significant difference (5.4 ± 3.2 mm) exists between minimum and maximum aortic root dimensions.
  • This difference is more pronounced in patients with bicuspid aortic valves.
  • Single-plane measurements (echocardiography, 2D CT) significantly underestimated maximum aortic root dimensions compared to 3D analysis.

Conclusions:

  • Aortic root dimensions are significantly underestimated by single-plane imaging.
  • Three-dimensional multiplanar reconstruction offers a more accurate assessment.
  • Clinical practice should consider 3D imaging for precise aortic root evaluation, particularly in specific patient groups.
Abstract

Keywords:
aneurysmaortaaortic rootcomputed tomographyechocardiographymeasurement

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