Skip to main content
SLU:s publikationsdatabas (SLUpub)

Sammanfattning

Background: Real-time 3-dimensional echocardiography (RT3D) is a recent technique based on volumetric scanning, eliminating the need for geometric modeling of the cardiac chambers and minimizing the errors caused by foreshortened views.Hypothesis: Estimations of left ventricular (LV) end-diastolic (EDV) and end-systolic volume (ESV), and left atrial (LA) size, differ depending on the echocardiographic technique of estimation.Animals: Fifty-one dogs with acquired heart disease and 34 healthy control dogs.Methods: Prospective observational study by M-mode (Teichholz method), Simpson's modified 2-dimensional (2D) method, and RT3D methods for estimation of LV volumes. LA size was evaluated by 2D and RT3D methods.Results: RT3D showed good agreement with 2D for EDV and ESV, whereas Teichholz method overestimated LV volumes in comparison with the other 2 methods by approximately a factor 2. There were no statistically significant differences among the 3 methods in estimating ejection fraction. Comparison between RT3D assessment of LA end-systolic volume per kilogram (LAs/kg) and LA to aortic ratio (LA/Ao) measured by 2D relative to each other showed that the RT3D method underestimated LAs/kg at lower values, and overestimated it at higher values. The difference between methods increased with increasing LA size.Conclusions and Clinical Importance: There was good agreement between RT3D and 2D methods of estimating EDV and ESV, whereas the Teichholz method overestimated LV volumes by approximately a factor 2. In comparison with RT3D, LA/Ao underestimated LA size, especially when LA was enlarged.

Nyckelord

Chronic valvular disease; Dilated cardiomyopathy; Ejection fraction; Left atrial and ventricular size

Publicerad i

Journal of Veterinary Internal Medicine
2010, volym: 24, nummer: 6, sidor: 1414-1420
Utgivare: WILEY-BLACKWELL PUBLISHING, INC

SLU författare

UKÄ forskningsämne

Veterinärmedicin

Publikationens identifierare

  • DOI: https://doi.org/10.1111/j.1939-1676.2010.0596.x

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/59986