Ultrasonography as an ancillary method for the positioning of markers in equine motion analysis / Utilização da ultrassonografia como método auxiliar no posicionamento de marcadores em análise de movimento de equinos
Braz. j. vet. res. anim. sci
;
51(1): 24-29, 2014.
Artigo
em Inglês
| LILACS
| ID: lil-724360
RESUMO
Kinematic motion analysis is based on the reconstruction of selected bony anatomical landmarks identified by surface markers. Anatomical landmarks generally do not correspond to points but rather to relatively large and curved areas and their identification by palpation is not easy. Precise placement of surface markers is even more difficult and there is great variability between operators. In this study 16 examiners were asked to identify the lateral border of the left ischial tuberosity in a horse using palpation and ultrasonography for placement of a corresponding skin surface marker. Images of each marking procedure were captured using two video cameras and processed using the DVideow videogrammetry. A custom-written Matlab code was used to determine the position of the respective vectors. The positions of the markers were then compared to assess inter-examiner variability and the precision of the methods employed using the Bartlett test and the paired t-test respectively. Ultrasonography significantly improved the location of the anatomical landmark by each examiner (p = 0.04) and reduced the variability in the position of the surface marker when compared to palpation (p = 0.0028). The variability of the calculated distances (mean ± SD) was 2.89 ± 2.24 cm and 1.63 ± 0.98 cm using palpation and ultrasonography respectively. Ultrasound guidance reduced inter-examiner variability and allowed visualization of the corresponding bony anatomical landmark.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Palpação
/
Fenômenos Biomecânicos
/
Ultrassonografia
/
Locomoção
Tipo de estudo:
Estudo diagnóstico
/
Guia de Prática Clínica
Limite:
Animais
Idioma:
Inglês
Revista:
Braz. j. vet. res. anim. sci
Assunto da revista:
Medicina Veterinária
Ano de publicação:
2014
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual Paulista/BR
/
Universidade Estadual de Campinas/BR
/
Universidade Federal do Mato Grosso/BR
/
Universidade de São Paulo/BR
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