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Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
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Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Aortic dimensions by multi-detector computed tomography vs. echocardiography.

David S Blondheim1, Lubov Vassilenko2, Yair Glick3

  • 1Noninvasive Cardiology Unit, Hillel Yaffe Medical Center, Hadera, Israel(1).

Journal of Cardiology
|September 8, 2015
PubMed
Summary
This summary is machine-generated.

Multi-detector computed tomography (MDCT) and cardiac echocardiography (ECHO) show considerable variability in aortic diameter measurements. The internal-to-external edge (MIX) method offers the closest agreement between MDCT and ECHO for aortic follow-up.

Keywords:
AortaAortic diameterDimensionEchocardiographyMulti-detector computed tomography

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Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Medical Diagnostics

Background:

  • Clinical follow-up of aortic dimensions is crucial for managing cardiovascular diseases.
  • Multi-detector computed tomography (MDCT) and cardiac echocardiography (ECHO) are interchangeably used for aortic dimension assessment.
  • Variability in measurements between imaging modalities can impact clinical decisions.

Purpose of the Study:

  • To assess the relationship between aortic diameter measurements obtained by MDCT and ECHO.
  • To compare different measurement methods (internal-to-internal, internal-to-external, external-to-external) across both modalities.
  • To determine the optimal method for consistent aortic dimension follow-up.

Main Methods:

  • 49 patients underwent both MDCT and ECHO for aortic diameter measurement.
  • Measurements were taken at 6 locations from the aortic annulus to the aortic arch.
  • Three edge-to-edge measurement methods were applied: internal-to-internal (INT), internal-to-external (MIX), and external-to-external (EXT).

Main Results:

  • Significant differences in average aortic diameter were observed between MDCT and ECHO across all three measurement methods (p<0.002).
  • The MIX method demonstrated the smallest absolute difference in aortic diameter measurements between MDCT and ECHO (3.1±2.8mm).
  • Differences between INT and EXT methods were similar, but significantly larger than the MIX method (p<0.001 for INT vs. MIX; p<0.05 for EXT vs. MIX).

Conclusions:

  • Considerable variability exists in ascending aorta measurements between MDCT and ECHO.
  • The internal-to-external edge (MIX) measurement method yields the closest agreement between the two modalities.
  • The MIX method is recommended for consistent long-term follow-up of aortic dimensions.