Assessment of renal volume by three-dimensional ultrasonography in pregnant bitches: an experimental study using virtual organ computer-aided analysis

Assessment of renal volume by three-dimensional ultrasonography in pregnant bitches: an experimental study using virtual organ computer-aided analysis

Author Mendonca, Debora Sartori Autor UNIFESP Google Scholar
Moron, Rafael Fontoura Fernandes Autor UNIFESP Google Scholar
Maldonado, Andre Luiz Louzada Autor UNIFESP Google Scholar
Araujo Junior, Edward Autor UNIFESP Google Scholar
Nardozza, Luciano Marcondes Machado Autor UNIFESP Google Scholar
Moron, Antonio Fernandes Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Background: To assess and to compare the renal volume evolution in bitches during pregnancy by two-dimensional (2D) ultrasonography using the ellipsoid technique (volume = length x width x depth x 0.523) and three-dimensional (3D) ultrasonography using the Virtual Organ Computer-aided AnaLysis (VOCAL) method. A longitudinal prospective study was performed with 17 normal Golden Retrievers bitches during pregnancy from heat to the last third of gestation. the ultrasound scans were performed by two veterinarians. the left and right kidneys were assessed in three moments (day 0 = non-pregnant bitches; days 1st to 20th of pregnancy and days 21st to 40th of pregnancy) by three techniques (ellipsoid; VOCAL 12 degrees and VOCAL 30 degrees). for reproducibility calculations, we used the intraclass correlation coefficient (ICC).Results: the inferential result of the volumes in ANOVA revealed the interaction effect between side and moment (p = 0.009). the 3D techniques showed, in average, the same renal volumes (p = 0.137) regardless of the side and moment. Considering the right side, the renal volume in the day 0 was smaller than the day 21st to 40th (p = 0.029). Considering the left side, the renal volume at day 0 was smaller than the day 1st to 20th (p = 0.020) and day 21st to 40th (p = 0.007). It was found good intra observer reproducibility (ICC > 0.9) and none of the three techniques showed a good inter observer reproducibility (ICC < 0.7).Conclusion: the renal volume bitches by 3D ultrasonography using the VOCAL method (12 degrees and 30 degrees) had good correlation with the volume obtained by 2D ultrasonography method.
Keywords Pregnant bitches
Renal volume
Two-dimensional ultrasound
Three-dimensional ultrasound
VOCAL
Language English
Date 2012-07-02
Published in Bmc Veterinary Research. London: Biomed Central Ltd, v. 8, 8 p., 2012.
ISSN 1746-6148 (Sherpa/Romeo, impact factor)
Publisher Biomed Central Ltd
Extent 8
Origin http://dx.doi.org/10.1186/1746-6148-8-102
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000307892300002
URI http://repositorio.unifesp.br/handle/11600/35087

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