Comparison of three two-dimensional echocardiographic methods of assessing left ventricular size in Doberman Pinschers.
J Vet Cardiol
; 40: 110-118, 2022 Apr.
Article
in En
| MEDLINE
| ID: mdl-34238699
ABSTRACT
INTRODUCTION:
Compare three methods of obtaining linear left ventricular dimensions within the same Doberman Pinscher (DP). ANIMALS One hundred and thirty-nine client-owned DP. MATERIALS ANDMETHODS:
Linear left ventricular dimensions were measured using two-dimensional short-axis (Sx-2D), motion-mode short-axis (Sx-MM), and motion-mode long-axis (Lx-MM) methods, then left ventricular volumes were obtained using monoplane Simpson's method of discs (SMOD). A Friedman test with Dunn's multiple comparisons was used to compare differences between methods. Bias and correlation were evaluated via Bland-Altman and Spearman's correlation. Sensitivity and specificity for diagnosing occult dilated cardiomyopathy (DCM) compared to SMOD were determined. Coefficients of variation (CVs) were calculated for intra- and inter-observer measurement variability.RESULTS:
There were significant differences between all linear dimensions in diastole and systole. Short-axis 2D measurements had significant bias compared with Sx-MM (diastole +1.19 mm, systole +1.65 mm) and Lx-MM (diastole +4.36 mm, systole +3.87 mm) as did Sx-MM compared with Lx-MM (diastole +3.17 mm, systole +2.22 mm). All linear dimensions had a moderate positive correlation with SMOD. The sensitivity and specificity of linear measurements to detect DCM were Sx-2D (sensitivity 72.0%, specificity 88.5%), Sx-MM (sensitivity 52.0%, specificity 92.0%), and Lx-MM (sensitivity 37.5%, specificity 99.1%). All methods had acceptably low CV for intra- and inter-observer measurement variability.CONCLUSIONS:
Results of this study suggest that linear measurements are repeatable and correlate with reference standard; however, there is a significant bias between measurements, and they should not be used interchangeably.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cardiomyopathy, Dilated
/
Dog Diseases
Limits:
Animals
Language:
En
Journal:
J Vet Cardiol
Journal subject:
CARDIOLOGIA
/
MEDICINA VETERINARIA
Year:
2022
Document type:
Article
Affiliation country:
Estados Unidos